multiply then elimination
2x+y=3
-x+3y=-12​

Answers

Answer 1

Answer:

X = 3

Y = -3

Step-by-step explanation:

Multiply Then Elimination 2x+y=3 -x+3y=-12

Related Questions

3,6,4,10, x; the mean is 6

Answers

Answer:

x=7

Step-by-step explanation:

You can find the complete solution in the given attachment

I hope it helped you

what is the product of 653 and 87

Answers

Answer:

56811

Step-by-step explanation:

This is the answer as when you do the math it checks out

a ratio is a comparison of two number in the dame unit.A ratio can be expressed

A. As a fraction
B. Using words
C. With a colon
D. All of the above

Answers

Answer:

D

Step-by-step explanation:

I have learned this in the past and did some research

An astronaut drops a hammer on the Moon as part of an experiment. Before the drop, he raises the hammer by a height of 1 m, which increases its gravitational potential energy by 1.2 J. The mass of the hammer is 0.75 kg. Calculate the gravitational field strength on the Moon.

Answers

Answer:

  1.6 N/kg

Step-by-step explanation:

The units of gravitational field strength are newtons per kilogram. The joule is a derived unit equivalent to a newton·meter.

Then the field strength is ...

  newtons/kg = (1.2 N·m)/((1 m)(0.75 kg)) = 1.6 N/kg

Sammy counts the number of people in one section of the school auditorium. He counts 18 girls, 24 boys, and 8 adults. There are 650 people in the auditorium. What is the probability that one person selected at random is an adult?

Answers

There is a 0.16th chance I believe

Help help help help help

Answers

Answer:

[tex]\sf 5x+6y=12[/tex]

Step-by-step explanation:

[tex]\sf y=-\dfrac{5x}{6}+2[/tex]

Multiply both sides by 6:

[tex]\implies \sf 6 \cdot y=6(-\dfrac{5x}{6}+2)[/tex]

Expand:

[tex]\implies \sf 6y=-5x+12[/tex]

Add 5x to both sides:

[tex]\implies \sf 5x+6y=-5x+12+5x[/tex]

[tex]\implies \sf 5x+6y=12[/tex]

Please help!!! I will give Brainliest!!!! :_D


Write an equation for each situation!

Answers

Alright, Nancy, let's do this.

If dimes are d, then quarters is d + 3.

10d + 25(d + 3) = 1090

I'm dealing with cents to get rid of the pesky decimal.

10d + 25d + 75 = 1090

                    35d = 1015

                        d = 29

Since quarters = d + 3, there are 32 quarters and 29 dimes.

Hope this helps!

i friend i am sorry but i can not answer your question there is no picture of wha tu need help with i am truley sorry but give the other person brainliest they need it :) have a great week!

Write twenty eight million, seven hundred and five thousand, one hundred and eighty five as a number

Answers

28,705,185
Hope this will help

Translate the following:
"five less than the quantity of a number plus one”
A: x-5+1
B: 5-x+1
C: (x+1)-5
D: 5-(x+1)

Answers

Answer:

Option A, x - 5 + 1

Step-by-step explanation:

Step 1:  Convert sentence into an expression

Five less than the quantity of a number plus one

  (quantity..x - 5)                                          +      1

x - 5 + 1

Answer:  Option A, x - 5 + 1

Can someone please help me with this? I'm not sure how to do it.

Answers

They are each on a point on the grid. The points have coordinates written as (x,y).

The number horizontally, on the bottom of the grid are the x values. The numbers vertically, going up are the y-values.

So,

O has coordinates x = 1 and y= 1 so it will be (1,1)
E has coordinates x=1 and y = 11 so it will be (1,11)
T has coordinates x=2 and y = 5 so it will be (2,5)

So on…

1. There were 4,504,227 people who came to see soccer matches last year. What digit is in the millions place?

2. If Gary's ruler is 12 inches, and Perl’s ruler is 36 inches, what is the length difference between the two rulers? Which number operation will be used to

Answers

1. A million has 7 digits. The number shown has 7 digits so the first number is in the millions place. Answer: 4


2. use subtraction

36-12 = 24

please help me with this ​

Answers

Answer:

[tex]2\frac{1}{8}[/tex]

Step-by-step explanation:

On the 3 days that the the worker served less than a cup of food, he served 7/8 of a cup, and 5/8 of a cup twice. Now we add these.

[tex]\frac{7}{8} +\frac{5}{8}+ \frac{5}{8} =\frac{17}{8}\\ \\\\\frac{17}{8} = 2\frac{1}{8}[/tex]


Complete the probability model. Don’t forget to write each answer as a percentage.

Answers

Answer:

The answer is the first one

Step-by-step explanation:

The first one is correct because the probaility of you getting some biyatches  is  zero.

Solving a One-Variable Linear Equation

Answers

Answer:

[tex]\Longrightarrow:\boxed{\sf{h=14}}[/tex]

Step-by-step explanation:

Isolate the term of h from one side of the equation.

Use the distributive property.

Distributive property:

→ A(B+C)=AB+AC

7h-5(3h-8)=-72

First, multiply expand.

⇒ -5(3h-8)

⇒ -5*3h=-15h

⇒ -5*8=40

Rewrite the problem.

→ -15h+40

⇒ 7h-15h+40=-72

⇒ 7h-15h=-8h

→ -8h+40=-72

Subtract by 40 from both sides.

⇒ -8h+40-40=-72-40

Solve.

⇒ -72-40=-112

⇒ -8h=-112

Then, you divide by -8 from both sides.

⇒ -8h/-8=-112/-8

Solve.

Divide the numbers from left to right.

→ -112/-8=14

[tex]\Longrightarrow: \boxed{\sf{h=14}}[/tex]

Therefore, the correct answer is h=14.

I hope this helps! Let me know if you have any questions.

have a good day and keep the negative energy out you life ​

Answers

Step-by-step explanation:

motivation of the Day

wish you the same

Help help math math math

Answers

Answer:

Non-Linear Function

Step-by-step explanation:

The answer is Non-Linear. Hope this helps :)

U10 (e) Solve the equation 2x4 + 5x3 – 5x – 2 = 0​

Answers

Answer:

x₁=1; x₂=-1; x₃=-0.5; x₄=-2.

Step-by-step explanation:

[tex]2x^4+5x^3-5x-2=0; \ < = > \ 2(x^4-1)+5x(x^2-1)=0; \ < = > \ 2(x^2+1)(x^2-1)+5x(x^2-1)=0; \ < = >[/tex]

[tex](x^2-1)(2x^2+2+5x)=0; \ < = > \ (x^2-1)(2x^2+5x+2)=0; \ = >[/tex]

[tex]= > \ \left[\begin{array}{ccc}x=1\\x=-1\\x=-\frac{1}{2} \\x=-2\end{array}[/tex]

Which number best represents thirty-one feet below sea level?

A. 31
B. +31
C. −31
D. 31−

Answers

Answer:

c

Step-by-step explanation:

You know the answe stop lying brutal

What factors can increase your chances of heart disease?
A. Having low blood sugar levels
B. Having low blood pressure
C. None apply
D. Taking illegal drugs

Answers

Answer:

Having low blood pressure.

Step-by-step explanation:

Blood pressure is based on the heart, and I learned this in health class

Hope this Helps

high blood pressure, high low-density lipoprotein (LDL) cholesterol, diabetes, smoking and secondhand smoke exposure, obesity, unhealthy diet, and physical inactivity.

a prism is completely filled with 96 cubes that have edge lengths of 1/2 cm.
what is the volume of the prism?
Enter your answer in the box.​

Answers

Answer:

12 cm^3

Step-by-step explanation:

Volume of one cube is 1/2 * 1/2 * 1/2 = 1/8 cm^3Volume of prism is 1/8 * 96 = 12 cm^3

A ball is thrown from an initial height of 2 meters with an initial upward velocity of 15 m/s. The ball's height h (in meters) after t seconds is given by the following.

Answers

To find when the ball's height is
7
meters, we substitute
7
for
h
and solve for
t
.
=7+2−25t5t2
In order to solve for
t
, we first rewrite the equation in the form
=+at2+btc0
.
=+−5t225t50
Next, we use the quadratic formula to solve for
t
.
=t−b±−b24ac2a
Our equation has
=a5
,
=b−25
, and
=c5
.
Another way
We use these values in the formula.
t
=−−25±−−252·4·55·25
=25±52510
We get that
t
can be either of two values to solve the equation.
=t=−25525100.2087…
or
=t=+25525104.7912…
Rounding these values to the nearest hundredth, we get
=t0.21
or
=t4.79
.
So, the ball's height is
7
meters at approximately
0.21
seconds (on its way up) or
4.79
seconds (on its way down).

Pls help I will give brainliest​

Answers

A.) 3^2+4^2=5^2

9+16=25

This is correct

B.) 2.5^2+5.6^2=37.61

6.4^2 = 40.96

This is not correct

C.) 9.6^2+12.8^2=256

16^2 = 256

This is correct

Help help help help math math

Answers

Answer: y = -1

Step-by-step explanation:

Any vertical line's equation is 'y ='

You would get -1 by looking at the line's position on the y-axis

Hope that helps!

Real world inequalities:



You must be 4 feet or taller to ride the roller coaster

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

The required inequality that represent the given scenario is :

[tex]\qquad \tt \dashrightarrow \:x \geqslant 4[/tex]

where, x is height in feet.

Let's interpret the information given:

  4 feet or taller ⇒ the person can be 4 feet or above 4 feet

Let's set 'x' as the hypothetical height of a person

Therefore the inequality should be x ≥ 4

   ⇒ we put x as greater than 4 since the person must be taller than 4

     feet to ride the roller coaster

   ⇒ we also put the '_' under the inequality to signify that the person

        can equal 4 feet in height and still be eligible to ride the roller

        coaster

Hope that helps!

Given a trapezoid with a height of 4.3m and bases of 9.2 m and 3.2m, what is the area of the trapezoid? Do not include units in your answer.

Answers

For  a height of 4.3m and bases of 9.2 m and 3.2m, the area of the trapezoid  is mathematically given as

A=26.7

What is the area of the trapezoid?

Generally, the equation for the trapezoid   is mathematically given as

A=0.5*(a+b)*h

Therefore

A=0.5*(3.2+9.2)*4.3

A=26.7

In conclusion,area of the trapezoid

A=26.7

Read more about Arithmetic

https://brainly.com/question/22568180

A garden table and a bench cost $984 combined. The garden table costs $84 more than the bench. What is the cost of the bench?

Answers

Answer:

$450

Step-by-step explanation:

a garden table costs $84 more than the bench,

therfore, $900-84 = $900

$900/2 = cost of bench

$450 = cost of bench

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What are the greatest common factors of 21 and 32?

Answers

Answer:

1

Step-by-step explanation:

The biggest common factor number is the GCF number. So the greatest common factor 21 and 32 is 1. Also check out the Least Common Multiple of 21 and 32

The greatest common factor of 21 and 32 is 1.

What is Greatest Common Factor?

Greatest common factor or GCF of two numbers is defined as the one common factor of the two given numbers which is the greatest of all the common factors.

GCF is also usually known as Highest Common Factor (HCF).

We have to find the greatest common factors of 21 and 32.

One of the method to find GCF is by prime factorization.

First prime factorize the two numbers. The product of the commonly shared prime factors will be the GCF.

If they don't share any common prime factors, then the GCF will be 1.

21 = 3 × 7

32 = 2 × 2 × 2 × 2 × 2

There are no common prime factors, GCF will be 1.

Hence, the greatest common factor of 21 and 32 is 1 since there are no common prime factors.

To learn more on GCF, click:

https://brainly.com/question/11444998

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what polynomial must be added to 3xsquared + 4x+7 to obtain a sum of zero

Answers

The polynomial which must be added to 3x² +4x + 7 to obtain a sum of 0 is; -3x² -4x +7.

Let the polynomial which must be added to 3x² +4x + 7 to obtain a sum of 0 be represented by P.

In essence;

P + 3x² +4x + 7 = 0.

By subtracting 3x² +4x + 7 from both sides of the equation to obtain the value of P; we have;

P = 0 -3x² -4x +7.

Ultimately, P = -3x² -4x +7.

Read more on polynomials;

https://brainly.com/question/2833285

For every 100 families with TV sets, about 12 families like
watching sports. In a town of 23,400 families who all have TV sets, how many families would you expect to like watching
sports?

Answers

Answer:

2808 families

Step-by-step explanation:

23400/100 = 234

234*12 = 2808

Identify the like terms: 5x, 6, 8yz, -2w

Answers

Hey there!

IDENTIFYING the LIKE TERMS OF….

5x, 6, 8yz, & -2w


Unfortunately, you don’t have any like terms because NONE of the terms don’t have anything alike with them.


Here’s examples of like terms (we will use the values you have listed above)


• 5x & -4w would give you 1x or simply x

• 6 - 2 would give you 4

• 8yz - 4yz would give you 4yz

• -2w - 1w would give you -3w


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

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