Please Help me!! It's for testing!

Jude is going from his house to the library. He walks as a rate of 100 yards per minute and bikes as a rate of 300 yards per minute. On his way to the library, Jude walks for 12 minutes and then rides his bike the rest of the way. The library is 6000 yards from his house.

How many minutes did it take Jude to go from his house to the library?

22 Minutes
28 Minutes
30 Minutes
48 Minutes

Answer: last one

Step-by-step explanation:

the first two make a positive product, then multiplying by a negative gives a negative

Answer:

b)[tex]\frac{-13}{3}[/tex]

Step-by-step explanation:

[tex]\frac{xy + 5}{3}\\\\\frac{\frac{-2}{3}27 + 5}{3}\\\\\frac{-18 + 5}{3}\\\\\frac{-18 + 5}{3}\\\\\frac{-13}{3}[/tex]

Answer:

B

Step-by-step explanation:

Evaluate the numerator , that is

xy + 5 = ( - [tex]\frac{2}{3}[/tex] × 27 ) + 5 = - 18 + 5 = - 13 , then

[tex]\frac{-13}{3}[/tex]

= - [tex]\frac{13}{3}[/tex] → B

Answer:

no

Step-by-step explanation:

bc the  x intercept is repeating when 100 is going to two numbers.A WAY easier (and faster), way to know if it is a function is to see if there are two of the same x-intercept (which make a vertical line). If there is, then it is NOT a function.

i hope this helps

Step-by-step explanation:

Using Cosine rule, we have:

q² = r² + s² - 2(r)(s)(cosQ)

= 380² + 390² - 2(380)(390)(cos48°)

= 98169.688cm²

Hence q = 313cm. (nearest centimeter)

The required value of side q is 313 cm for the triangle ΔQRS.

A triangle is a geometric figure with three edges, three angles and three vertices. It is a basic figure in geometry.

The sum of the angles of a triangle is always 180°

Given that,

In triangle QRS side r = 380 cm, side s = 390 cm and angle Q = 48°.

To find the length of the side q,

Use cosine rule,

[tex]cos Q = \frac{(r^2 + s^2 - q^2)}{(2\times r \times s)}[/tex]

Substitute the values here,

[tex]cos 48 = \frac{(380)^2 + (390)^2- q^2}{2\times380 \times390} \\[/tex]

[tex]0.67 = \frac{144400 + 152100 - q^2}{296400}[/tex]

198,588 = 296500 - q²

q² = 97912

q = 312.90

q = 313 cm

The value of side q is 313 cm.

To know more about Triangle on:

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The answer is c. because all of the other answers arne tpossible due to where they graphed it

Answer:

16 cups is equal to 4 quarts

Step-by-step explanation:

Multiply the volume by 4

The required  4 quarts are equal to 16 cups. This means that if you have 4 quarts of liquid, you can pour it into 16 cups and it will completely fill them. Option D is correct.

1 quart is equivalent to 4 cups. This is a standard conversion ratio between quarts and cups. It means that if you have 1 quart of liquid and you want to know how many cups it is, you can simply multiply the number of quarts by 4.

So, to find out how many cups are in 4 quarts, we perform the following calculation:

4 quarts * 4 cups/quart = 16 cups

Learn more about conversion ratios here:

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Step-by-step explanation:

(T-S)(2000), when T(x) and S(x) are functions, is equivalent to T(2000)-S(2000), which is 17-7=10

We know that T(x) is equal to everything else, and everything else is S(x)+G(x), so T(x)-S(x) = G(x), or dollars spent on general science

Answer:

12 oz (1)  has the lowest

Step-by-step explanation:

ur wlcmeocxjvieirbvuubvuebwdfjvberlbf

(-y −y) + (4x + 4x) + (-3 −3 + 2 + 2 + 2 + 2) + (-5x−5x)

-2y + 8x + 2 - 10x

-2y -2x +2

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

Explanation:

Assume the polynomial we want to find is in the form Ax^2+Bx+C

The goal is to find the values of A, B, and C.

We start with 3x^2+4x-1, then we subtract off Ax^2+Bx+C. Set this equal to 1 and we get:

(3x^2+4x-1) - (Ax^2+Bx+C) = 1

3x^2+4x-1 -Ax^2-Bx-C = 0x^2 + 0x + 1

(3x^2-Ax^2) + (4x-Bx) + (-1-C) = 0x^2 + 0x + 1

(3-A)x^2 + (4-B)x + (-1-C) = 0x^2 + 0x + 1

From here we equate the coefficients of the x^2 terms together and we see that 3-A = 0 which leads to A = 3.

Do the same for the x terms to get 4-B = 0 leading to B = 4

Finally, we have -1-C = 1 lead to C = -2

The polynomial Ax^2+Bx+C becomes 3x^2+4x-2

-------------------

Checking the answer:

(3x^2+4x-1) - (Ax^2+Bx+C)

(3x^2+4x-1) - (3x^2+4x-2)

3x^2+4x-1 - 3x^2-4x+2

(3x^2-3x^2) + (4x-4x) + (-1+2)

0x^2 + 0x + 1

0 + 0 + 1

1

We get a difference of 1, so the answer is confirmed.

Answer:

30 minutes after biker left

Step-by-step explanation:

Given that :

Speed of hiker = 3 mph

Speed of biker = (3 +6) = 9 mph

Present Distance of hiker when the biker set out ;

Present Distance of hiker = speed * time = (3 * 1) = 3 miles

Time taken to catchup equals :

Present distance + (distance when biker set out) = bikers distance

Let time taken = x

(3 + (3 * x)) = (9 *x)

(3 + 3x) = 9x

3 + 3x = 9x

3 = 9x - 3x

3 = 6x

x = 3/6

x = 1/2 hours

x = 30 minutes

30 minutes after biker left

Answer:

0.5 hrs or 30 mins

Step-by-step explanation:

Answer:

x = 8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

5(x - 2) - 6 = 24

Step 2: Solve for x

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Here we see that 24 does indeed equal 24.

∴ x = 8 is the solution to the equation.

Answer:

Step-by-step explanation:

m∠X + m∠Y + m∠Z = 180          {angle sum  property of triangle}

3x + 5 + 40 +4x - 5 = 180

3x + 4x  + 5 + 40 -5 = 180           {Combine like terms}

                   7x + 40 = 180        { subtract 40 from both sides}

                            7x = 180 - 40

                            7x = 140

                             x = 140/7

                            x = 20

m∠X = 3x + 5

         = 3*20 + 5

         = 60 + 5

m∠X = 65

m∠Z = 4x - 5

         = 4*20 - 5

        = 80 - 5

m∠Z = 75

Answer:

Step-by-step explanation:

if there are  cups of sugar for 520 cookies

this means with one cup of sugar we can make 130 cookies

520/4=130

1300/130= 10 cups

for 1300 cookies we need 10 cups of sugar

Answer:

We are known that Katya and her friends stand in a circle and both neighbors are of same gender this means that the person on the right and the person on the left of anyone in the circle will be of same gender either a girl or a boy.

We are given that there are five boys, we could have considered the circle to be only composed of boys but we are given there is a girl Katya within it and it is also mentioned that 'Katya and her friends' that means there can be more girls in the circle.

Now when we draw a circle on a page and mark points K for Katya and boys B1 and B2 on right and on the left of Katya we will get to know that after each boy there has to be a space vacant because on that space a girl should be positioned only then we will meet the criteria of both gender's same on the neighbor side of each person.

Also we will mark boys B1,B2,B3,B4,B5 as five boys and leave space vacant for girls and with those vacant spaces we get to know there will be 4 vacant spaces and one is Katya herself.

Therefore there will be a total of five girls in the circle one is Katya and other four.

★To Solve :

[tex]\rm\blue{13(y+7) = 3(y-1)}[/tex]

⠀⠀⠀⠀⠀

★SOLUTION :

[tex]\rm\red\leadsto{13(y+7) = 3(y-1)}[/tex]

[tex]\rm\red\leadsto{13\times{y}+13\times7= 3\times{y}-3\times1}[/tex]

[tex]\rm\red\leadsto{13y+91=3y-3}[/tex]

[tex]\rm\red\leadsto{13y-3y=-3-91}[/tex]

[tex]\rm\red\leadsto{10y=-94}[/tex]

[tex] \rm\red\leadsto{} y =\dfrac{ { \cancel{-94}}^{ \:-45 } }{ { \cancel{10}}^{ \: 5} } [/tex]

[tex]\rm\red\leadsto{y=}\dfrac{-47}{5}[/tex]

____________________

Answer:

$57

[tex]9w+6d[/tex]

Step-by-step explanation:

Given that:

Earnings per hour for washing cars = $9

Earnings per hour for walking dogs = $6

Number of hours for which car washing is done = [tex]w[/tex]

Number of hours taken for walking dogs = [tex]d[/tex]

Earnings for [tex]w[/tex] hours for washing cars = Per hour earnings multiplied by number of hours = $9[tex]w[/tex]

Earnings for [tex]d[/tex] hours for walking dogs = Per hour earnings multiplied by number of hours = $6[tex]d[/tex]

Total earnings by both = $([tex]9w+6d[/tex])

Now, given that

Number of hours spent washing cars = 5 hours

Number of hours spent walking dogs = 2 hours

Therefore, total earnings by both = 9 [tex]\times[/tex] 5 + 6 [tex]\times[/tex] 2 = $57

Answer

Answer: 11

Step-by-step explanation:

From the question, we are told to calculate the value when 17 is more than -6​. This question simply means that we should add -6 and 17 together. This would then be:

= -6 + 17

= 11

Therefore, the answer is 11.

Answer:

A. 5.444444444444   XD

Step-by-step explanation:

Answer:

I just thought about it in my head but possibly try A

Step-by-step explanation:

...

Answer:

x=3

PR=10

Step-by-step explanation:

This is an isosceles triangle, indicated by the black markers on angles P and Q. This also means that sides PR and QR are equal.

That in mind, to solve for x set the two expressions equal to each other and solve for x.

3x+1=5x-5 (subtract 1 from the left side and 5 from the right. Do the same from both sides)

-2x = -6 (divide by -2)

X=3

To find the measurement for PR, simply plug in the value for x into the equation for PR

3(3) +1

9+1 =10

Answer:

28x + 8y + 2 hope that helps

Answer:

[tex]h(x)=12x-9[/tex]

Step-by-step explanation:

We are given the two functions:

[tex]f(x)=4x-2\text{ and } g(x)=-8x+7[/tex]

And we want to find:

[tex]h(x)=f(x)-g(x)[/tex]

So, by substitution:

[tex]h(x)=(4x-2)-(-8x+7)[/tex]

Simplify. Distribute:

[tex]h(x)=(4x-2)+(8x-7)[/tex]

Rearrange:

[tex]h(x)=(4x+8x)+(-2-7)[/tex]

Combine like terms. Hence:

[tex]h(x)=12x-9[/tex]

Answer:

10%

Step-by-step explanation:

The computation of the percentage of bulbs that switched on incandescent is as follows;

Let us assume the incandescent be I

And, the fluorescent be F

Now the equation is

0.4I + 0.9F = 0.8 (I+F)

0.41I + 0.9F = 0.8I + 0.8F

So here

0.4I = 0.1F

Now the percentage would be for incandescent in the case of switched on is

= 0.4I ÷  0.8(I+F) × 100

= 0.1F ÷ 1F

= 10%

Answer:

A = 2

Step-by-step explanation:

When there are no solutions for x, both sides x cancel leaving an equation with two distinct numbers equal to each other (e.g. 6 = 0). Therefore, we must find a number A for which that happens.

Lets first simplify the equation, 3Ax - 24 = 5x - 9 + x = 6x - 9.

We want to cancel out the 6x on both sides. This happens when the left side also has 6x, so 3Ax = 6x -> A = 2.

Testing out this works, we get:

6x - 24 = 6x - 9 -> -24 = -9 (which isn’t true)

We get no solutions, which is what we are looking for! Therefore, A = 2 must be our answer!

I hope this helps! :)

Answer:

The equation of line parallel to given line passing through (8,-7) is:

[tex]y = -\frac{5}{4}x+3[/tex]

Step-by-step explanation:

Given line is:

5x+4y=16

first of all, we have to convert the equation of given line in slope-intercept form

[tex]4y = -5x+16[/tex]

Dividing both sides by 4

[tex]\frac{4y}{4} = -\frac{5x}{4} + \frac{16}{4}\\y = -\frac{5}{4}x+4[/tex]

Slope intercept form is:

[tex]y=mx+b[/tex]

The slope of given line is:

[tex]m = -\frac{5}{4}[/tex]

Let m1 be the slope of line parallel to given line

"The slopes of two parallel lines are equal"

[tex]m = m_1\\m_1 = -\frac{5}{4}[/tex]

The equation of line parallel to given line will be:

[tex]y = m_1x+b[/tex]

Putting the value of slope

[tex]y = -\frac{5}{4}x+b[/tex]

Putting the point (8,-7) in the equation

[tex]-7 = -\frac{5}{4}(8)+b\\-7 = -(5)(2) + b\\-7 = -10+b\\b = -7 +10\\b = 3[/tex]

Putting the value of b

[tex]y = -\frac{5}{4}x+3[/tex]

Hence,

The equation of line parallel to given line passing through (8,-7) is:

[tex]y = -\frac{5}{4}x+3[/tex]