I need help with this?

I Need Help With This?

Answers

Answer 1

The first equation will be multiplied by 3 and that of the second by 4.

What is an elimination method?

An elimination method is a process of solving a system of linear equation, in this we make coefficients of the one variable equal and subtract the equations.

Given that are two equations to be solved by using elimination method,

-4x+4y = 32.....(i)

3x-y = 12......(ii)

To eliminate x, we will multiply eq(i) by 3 and eq(ii) by 4

-12x+12y = 96.....(iii)

12x-4y = 48....(iv)

Solving the equations, we get,

8y = 144

y = 18

Put y = 18 in eq (ii)

3x-18 = 12

3x = 30

x = 10

Hence, the first equation will be multiplied by 3 and that of the second by 4.

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Related Questions

Help!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

32

Step-by-step explanation:

Answer:

32

Step-by-step explanation:

CL congruent with CM

WX congruent with YZ

32 = 32

pleasee help with these questions

Answers

Answer:

6. 3.14 7. 172.03 8. 78.54 9. 380.13 10. 19.63 11.28.27

b.) Suppose the Governor of Louisiana decided that all license plates must begin with the
letter A on each license plate. How many fewer license plates would
Louisiana be able to issue using the Governor's mandate for license plates?

Answers

Answer: atleast alot

Step-by-step explanation:

a3 - c + b, when a=3, b=6, c=8

Answers

Answer:

7

Step-by-step explanation:

In order to find the answer to the equation, you must substitute the given values into the equation.

A^3 - C + B

We know that A = 3, B = 6, and C = 8

(3)^3 - (8) + (6)

9 - 8 + 6

1 + 6

7

What is the solution of the system of equations? Show your work.
4x - 2y = 10
2x + y = -3

Answers

Answer:

no solutions

Step-by-step explanation:

you have to divide the whole first equation by 2 and you would get

2x+y=5

2x+y=-3

That is not true the same thing can’t have different outcomes.
it is no solution

solve number 13 please

Answers

The new model {A} for the total number of new green tea and fruit juice sales can be written as {A} = 9t^4 + 3t² + 105 .

What is expression ?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.

Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.

An algebraic expression is made up of a number of variables, constants, and mathematical operations. We are aware that variables have a wide range of values and no set value. They can be multiplied, divided, added, subtracted, and other mathematical operations since they are numbers. as in 3x Plus 4.

Given is that during a 20-year period, G and I can be modeled by the following equation (where t is the time in years) :

G = 6t^4+ 3t³ – 2t² + 5t + 60

I = 3t^4 - 3t³ + 5t² - 5t + 45

where {G} is the number (in billions) of new green tea sales and {I} be the number in billions of new fruit juice sales.

A new model {A} for the total number of new green tea and fruit juice sales can be written as -

{A} = {G} + {I}

{A} = 6t^4+ 3t³ – 2t² + 5t + 60 + 3t^4 - 3t³ + 5t² - 5t + 45

{A} = 9t^4 + 3t² + 105

Therefore, the new model {A} for the total number of new green tea and fruit juice sales can be written as {A} = 9t^4 + 3t² + 105

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Joe wrote an inequality
for each of the following
statements. Decide whether
Joe's written inequality is
TRUE or FALSE based on
what's typed and compare it
to what he actually wrote.

A
The sum of a number and 7 is not more than 10

x + 7 < 10

B

The product of a number and 4 is at least 20

4X > 20

C
The difference between a 15 and a number is at most 12

15-x>12

D

The quotient of a number and 8 is greater than or equal to

8x <3

Answers

Answer:Please see answer in explanation column

Step-by-step explanation:

A

The sum of a number and 7 is not more than 10

Given answer: x + 7 < 10  , This is false

Reason :Not more than 10 means at most 10, less than or equal to 10 , " or " not greater than 10 "and therefore the correct inequality  is written as

x + 7  ≤ 10

B

The product of a number and 4 is at least 20

Given answer: 4X > 20  ---- False

Reason :At least 20  means at no less than 20 " or " greater than or equal to 20  therefore the correct inequality  is written as

4X ≥ 20

C

The difference between a 15 and a number is at most 12

Given answer: 15-x>12----False

Reason :At most 12  means  " no more than 12 , "  " less than or equal to 12 , " or " not greater than 12"therefore the correct inequality  is written as

15-x  ≤  12

D

The quotient of a number and 8 is greater than or equal to

Given answer 8x <3 --False

Reason : It clearly stated greater than or equal to 3. Therefore the correct inequality is  8x  ≥ 3

Which statements are true about the figure? Check all that apply.
THE COM
5725
The figure is a triangular prism.
The figure is a rectangular pyramid.
ООО
The figure has 6 vertices.
The figure has 6 faces.
The figure has 9 edges.

Answers

Answer:

b took the test

Step-by-step explanation:

The true statements about the figure are (a) The figure is a triangular prism, (c) The figure has 6 vertices and (e) The figure has 9 edges.

What is Triangular Prism?

Triangular prisms are three dimensional figure consisting of two triangular bases and three rectangular lateral faces.

Given that, a net has 3 rectangular faces and 2 triangular faces.

This must be a triangular prism by the definition of triangular prism.

The figure will not be a rectangular pyramid since the rectangular pyramid only has 1 rectangular base.

The number of vertices are 6, since there are three vertices for each triangle.

There are only 5 faces for the given net which is 3 rectangular faces + 2 triangular faces.

There are 3 edges each for two triangles forming 6 edges and there 3 edges for the rectangle, a total of 9 edges.

Hence the correct statements are (a), (c) and (e).

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Your question is incomplete. The complete question is as follows :

Which statements are true about the figure? Check all that apply.

A net has 3 rectangular faces and 2 triangular faces.

a)The figure is a triangular prism.

b)The figure is a rectangular pyramid.

c)The figure has 6 vertices.

d)The figure has 6 faces.

e)The figure has 9 edges.

What is the slope of the line through (2, -1) and (-2, -3)?

Answers

The slope of the line is 1/2
The slope would be..1/2!!

Four gallons of paint are used to paint 25 chairs. If each chair used the same amount of paint, how many gallons are used to paint each?

Answers

Answer:

0.16 or 0.2 if rounded

Step-by-step explanation:

4 gallons divided by 25 chairs equals 0.16 gallons for each chair

hope this helps <3

use the equation y=7x to complete the table what are the missing values

Answers

Answer:

your answer is correct

Step-by-step explanation:

7(2) = 14

7(4) = 28

You want to compare the ratios 3:12 and 7:28 to see if they're equal. You know that you need to compare the products of the extremes against the product of the means. Which two values are the means for this comparison? A. 3 and 7 B. 12 and 28 C. 3 and 28 D. 12 and 7

Answers

Answer:

Step-by-step explanation:

3:12 7:28

The means are the second and third terms in the proportion.

The extremes are the two outside terms.

12 and 7 are the means.

(3 and 28 are the extremes.)

So thre answer is D.  12 and 7.

Drag the names to match the geometric terms as shown in the diagram.

Answers

Just so you know, there's no diagram

Triangle FGH has vertices F(1, –5), G(6, 0), and H(1, 0). What is the approximate perimeter of this triangle?

Answers

You have to use the distance formula to get the distance between the points, then add the three sides together

What is the equation of a line with a slope of 3 and a point (3. 1) on the line? Express the equation in the form of y Enter your answer in the box mz+ b where m is the slope and b is the y-intercept

Answers

A line with a slope of three and the point three on the line have the equation y=3 z+1. The equation of a straight line can be found using the formula y = mx + b.

What do you meant by y-intercept ?

If a line has a slope of 3 and a y intercept of 1, you need to determine its equation. Remember the line's equation by first going back: when y=mz+b , M is the slope, and Y-intercept b is the value.

In order to solve for y in the equation y=m z+b, all you need to do is swap out m for 3, the slope you provided, and b for 1, the y-intercept. The line's equation is given by y=3 z+1, where z represents the line's y-intercept and slope. If you are aware of the slope of the line being studied and the provided point is also the y intercept, you can utilise the slope intercept formula, y=mx+b (0,b).

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Eli shows that triangle A is congruent to triangle B by rotating triangle A around point
K and then translating it so it matches up with triangle B exactly. Which conclusion
can be drawn from Eli's transformations?

Answers

Answer:

All Sides are equal to their corresponding ones [SK = BG and so on...]

All angles are equal to thei corresponding angles [angle(T) = angle(I) and so on..]

(C.P.C.T)

Step-by-step explanation:

From the given figure, ignoring the fact that she rotated it, we can prove that the two triangles are congruent by RHS congruence criterion.

After proving so, we can use C.P.C.T to find the relations.

Hope it helps. Thank you :)

Complete this division sentence.
5884÷94 =
R

Answers

The remainder of the given division 5884/ 94 is 56 and hence the complete sentence is 5884/94 = 62 + 56/94.

What is remainder and how to find a remainder?

The amount that remains after division is complete is known as a remnant. Simply divide the number by another number that is one of its multiples to obtain the remainder.

The division of any number can be written as follows:

a/n = q + r/n

where, a is the dividend, n is the divisor, r is the remainder and q is the quotient.

When we divide the number 5884 by 94 using the long division method the quotient is 62 and the remainder is 56.

Hence, the complete sentence is 5884/94 = 62 + 56/94.

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what is the correct way to read 201,445

Answers

Answer:

Step-by-step explanation:

two hundred one thousand four hundred forty five

Answer:

two-hundred one thousand four hundred-forty-five

Hope this helps!

Mark me brainliest if I'm right :)

Solve on the interval [0,2pi): 1- cos0= 1/2

Answers

Using an inverse trigonometric function, we will find that the solution is:

θ = 1.047

How to solve that equation?

Here we want to solve the equation:

1 - cos(θ) = 1/2

Such that θ ∈  [0,2pi)

Now let's return to our equation:

1 - cos(θ) = 1/2

1 - 1/2 = cos(θ)

1/2 = cos(θ)

Now we could apply the inverse cosine function to both sides, then we will get:

Acos(1/2) = Acos(cos(θ))

1.047 = θ

That is the solution.

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Distribution of toys : Is this different or just the division with remainder

Answers

Answer:

Step-by-step explanation:

20)63(3

    -60

   -------

        3

so every children gets 3 toys but 3 toys are left which can be distributed among 3 children.

so 3 children get 1 toy more.

Hence 3 children get 3+1=4 toys (each)

eva invest $120 at a rate of 3% per year compound interest. calculate the total amount eva has after 2 years

Answers

Answer:

Eva has $127.31 after 2 years.

Step-by-step explanation:

Here is the formula for compound interest

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]

Where [tex]A[/tex] is the final amount, [tex]P[/tex] is the initial amount, [tex]r[/tex] is the interest rate as a decimal, [tex]n[/tex] is the number of times the interest applied per time period, and [tex]t[/tex] is the number of time periods.

We are given

[tex]P=120\\r=0.03\\n=1\\t=2[/tex]

Substitute our numbers into the equation

[tex]A=120(1+\frac{0.03}{1})^{1*2}[/tex]

[tex]A=120(1.03)^{2}[/tex]

[tex]A=120*1.03^{2}[/tex]

[tex]A=120*1.0609[/tex]

[tex]A=127.308[/tex]

Help me out.....please

Answers

Answer:

2.5

Step-by-step explanation:

the radius is half of a diameter so

radius = 5/2 = 2.5 inches

Answer:

2.3

Step-by-step explanation:

Jessie pays $2 for each carnival ride plus $8
on food. His mom told him he could spend at
most $35. Write an algebraic inequality that
shows at most how many rides Jessie can
ride. Let x=number of rides he can get on.

Answers

$ 2 each carnival ride + $8 spend at most $35

Rewrite that is
$2x + 8 ≤ 35

I hope this helped and that I was right, have a nice day.

The following is a list of books I read this summer what percent of my books were nonfiction nonfiction equals 8 fiction equals 17

Answers

Answer:

About 47% of books were nonfiction.

The actual percentage includes decimals and it would be this:

%47.0588235294

Josh must submit 4 paintings as part of his
application to art school. If he has 25 to choose
from, how many ways can he pick 4?

Answers

Answer: 4,096

Step-by-step explanation:

There are 12650 ways for pick 4 paintings.

Given:

He has 25 to choose.

No. of ways he can pick 4 in 25 = 25 C 4.

             [tex]\frac{25!}{4!(25-4)!} =\frac{25}{4!\times2!} =12650\\[/tex]

Therefore, 12650 ways for pick 4 paintings.

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A polynomial function g(x) has a positive leading coefficient. Certain values of g(x) are given in the following table.

x –4 –1 0 1 5 8 12
g(x) 0 3 1 2 0 –3 0


If every x-intercept of g(x) is shown in the table and each has a multiplicity of one, what is the end behavior of g(x)? (5 points)
As x→–∞, g(x)→∞ and as x→∞, g(x)→∞.
As x→–∞, g(x)→–∞ and as x→∞, g(x)→–∞.
As x→–∞, g(x)→ –∞ and as x→∞, g(x)→∞.
As x→–∞, g(x)→∞ and as x→∞, g(x)→–∞.

Answers

Examining the polynomial function g(x) as given in the table the end behavior is

As x → –∞, g(x) → –∞ and as x → ∞, g(x) → ∞.

What is end behavior?

The end behavior of function typically says the characteristics of the function at the ends

How to find the end behavior  of polynomial function

The given table when examined shows that there was three zeros hence the graph is that of odd function

The end behavior of an odd function with positive leading coefficient is

x ⇒ ∞ f(x) ⇒ ∞: as x tends to positive infinity the function tends to positive infinity

x ⇒ -∞ f(x) ⇒ -∞: as x tends to negative infinity the function tends to negative infinity

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Expand and simplify

(X-2)(3x+3)(x+1)

Answers

Answer:

5x+2

Step-by-step explanation:

Function Representations
In this activity, you will use multiple representations of relationships to identify key features and solve problems.

Ryan conducted a 6-day study observing the effects of an organic plant food on the growth of his sprouting bean plant. He tracked these two pieces of information:

the amount of plant food remaining in the container after each day’s feeding
the height of the plant over time

Answers

Answer:

See joint picture.

Step-by-step explanation:

The study lasts 6 days. Since the amount of plant food decreased an equal amount each day, and since the whole 72 millimeters were used, it means that plants consumed 72/6 = 12 millimeters daily.

All the results given come from this justification.

The required consumption of each day is 12 mm.

Ryan conducted a 6-day study observing the effects of an organic plant food on the growth of his sprouting bean plant. He tracked these two pieces of information

What is Statistic?

The statistic is the study of mathematics which deal with relations between comprehensive data.

Since
observation run for 6 days and have 72 mm of food  has been fed each day.
at the end of 6 day food remains 0 mm i.e.
Rate at which food has been fed for each day is given by
= 72/6 = 12
12 mm of food has been fed every day for to the 6 days.


At day 0 we have 72 mm of food
At day 1 we have  60 mm of food
similary for
At  day 6 we have 0 mm of food

Thus the graph has been attached below for the values of x

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What is the midline of this function? y=    
What is the amplitude of this function?  
   Define a function, g, to represent the behavior of the graphed function. g(a)= NO LINKS. ​

Answers

Answers:

Midline:  y = 0Amplitude = 1.5Function:  g(x) = 1.5sin(0.5x + pi/4)

There are infinitely many possible ways to answer the third part.

===========================================================

Explanation:

The midline is the horizontal line that goes through the center of the sine curve. Visually we can see that is y = 0. Another way we can see this is to note how y = 0 is the midpoint of y = 1.5 and y = -1.5, which are the max and min respectively.

---------

The amplitude is the vertical distance from y = 0 to y = 1.5, and it's also the vertical distance from y = 0 to y = -1.5; in short, it's the vertical distance from center to either the peak or valley.

---------

The general format of a sine curve is

y = A*sin(B(x-C)) + D

where,

|A| = amplitudeB = variable tied with the period T, specifically B = 2pi/TC = handles the left and right phase shiftD = handles the vertical shifting, and y = D is the midline.

In this case, we found so far that

|A| = 1.5 which could lead to A = 1.5B = 2pi/(4pi) = 0.5 since T = 4pi is the periodD = 0

The only thing we're missing is the value of C, which is the phase shift.

Note the point (pi/2, 1.5) is one of the max points on this curve. Also, recall that sin(x) maxes out at 1 when x = pi/2

This must mean that the stuff inside the sine, the B(x-C) portion, must be equal to pi/2 in order to lead sin(B(x-C)) = 1.

So,

B(x-C) = pi/2

0.5(pi/2-C) = pi/2

pi/4 - C/2 = pi/2

4*( pi/4 - C/2 ) = 4*(pi/2)

pi - 2C = 2pi

-2C = 2pi - pi

-2C = pi

C = pi/(-2)

C = -pi/2

This allows us to update the function to get g(x) = 1.5*sin(0.5(x+pi/2)) which is the same as g(x) = 1.5sin(0.5x + pi/4)

This is one possible answer because we could have infinitely many possible values for C, due to sin(x) = 1 having infinitely many solutions.

Also, you could use cosine instead of sine. Cosine is just a phase shifted version and of sine, and vice versa.

Which statement is true based on a graph of the line that passes through the given coordinates? (2, 1), (3,3), (5,7), (6,9) Please help

A. The line that passes through the given coordinates does not represent a proportional relationship because the line passes through the origin.

B. The line that passes through the given coordinates represents a proportional relationship because the line passes through the origin.

C. The line that passes through the given coordinates does not represent a proportional relationship because the line does not pass through the origin.

D. The line that passes through the given coordinates represents a proportional relationship because the line does not pass through the origin.

Answers

The line that passes through the given coordinates does not represent a proportional relationship because the line does not pass through the origin. Option C

What is a proportional relationship?

We can say that a relationship  is proportional when the relation does lead to a straight line graph and the graph would have to be able to pass through the origin.

Hence, even if we have a straight line graph but the graph does not pass through the origin of the graph then we can not say that the relationship that is existing between the coordinates that have been shown is proportional.

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hello please help ill give brainliest Can someone help me with this math question plzz thx!! How do you know if its linear or linear? Linear equation and linear system What did the Fourteenth Amendment gave the Supreme Court the ability to do ? 4. The profit on one share is Rs20.What is the profit on 5000 shares? I need a verbal description for the equation using the graph texts. Thank you! The construction manager for ABC Construction must decide whether to build single family homes, apartments, or condominiums. He estimates annual profits (in $000) will vary with the population trend as follows: Population Trend Type Declining Stable Growing Single Family 90 70 Apartments 70 170 90 Condos Prior Probability 200 -20 100 220 0. 4 0. 5 0. 1. . . If he uses the maximum likelihood criterion, which kind of dwellings will he decide to build? If he uses the maximax criterion, which kind of dwellings will he decide to build? If he uses the maximin criterion, which kind of dwellings will he decide to build? If he uses Bayes' decision rule, which kind of dwellings will he decide to build? What is the expected annual profit for the dwellings that he will decide to build using Bayes' decision rule? What is his expected value of perfect information? Might it be worthwhile for manager to spend $75. 000 for a professional surveyor to obtain better estimates?. . Draw the Decision Tree the difference of a number x and 7. 20. You are buying new car for $24,320. You must put down 17%. How much will you need to finance the car for? How did the US Lend-Lease Program of 1939 help the Allies it gave them war supplies? Match the description to the advancement. !!!!!!NEEED HELP ASAP DUE SOON!!!!!!!! opposite word 1. borrow 2. cruel 3. cheap 4.special 5 friendship 6. hope 7. refuse 8. bitter if you earn 3250 over the 10 year period, how much will be in the account at the end of the 10 year period? A 12 pack of soda cost $4.80. What is the unit cost? The pitchers for the home team had 12 strikeouts for 32 batters, while the pitchers for the visiting team had 15 strikeouts for 35 batters. Which pitching team had a greater fraction of strikeouts.(Hint: Just make the 12 for 32 and 15 for 35 into fractions and see which is greater or less than.) IMPORTANTFor most of human history, which form of government has been most common? A. representative democracy B. direct democracyC. autocracyD. oligarchy Why did Kennedy and Johnson want Asians and Eastern Europeans to see the US as a "land of opportunity"? mark is thinking of two numbers his two numbers have a positive sum but a negative productgive an example of what hi numbers could be ?