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3 years ago

Which equation demonstrates the distributive property?

Mathematics

1 answer:

Veseljchak [2.6K]3 years ago

5 0

Answer:

The equation that demonstrates the distributive property is B.

Step-by-step explanation:

When you find the distributive property it depends if the first number on the outside can be distributed to the the other numbers to then create another equation that both numbers inside the parenthesis are multiplied but the number on the outside.

3(2+8)=3×2+3×8

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Answer:

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Step-by-step explanation:

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2 years ago

Find the equation of the para bola that has zeros of x = -2 and x = 3 and a y-intercept of (0,-30)

lana [24]

Answer:

y = 5x^2-5x-30

Step-by-step explanation:

A parabola with x-intercepts at (-2,0) and (3,0) has the equation

y = a(x+2)(x-3)

where a is to be determined.

We know that it passes through the point (0,-30), so

-30 = a(0+2)(0-3) = -6a

Therefore solve for a to get

a = 5

y = 5(x+2)(x-3)

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3 years ago

Matt works at a job where he makes a

melamori03 [73]

Answer:

Step-by-step explanation:

Matt makes $50 per sale because 50x3=150 so the answer would be $50.

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4 years ago

The high temperatures in Montana are recorded for a week. High Temperatures Sunday 46°F Monday 52°F Tuesday 51°F Wednesday 54°F

Elan Coil [88]

Answer:

Step-by-step explanation:

to get the mean you need to add up all the numbers

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then divide that sum by the amount of numbers you have

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3 years ago

Read 2 more answers

When Mei does 17 push-ups and 6 sit-ups, it takes a total of 35 seconds. In comparison, she needs 41 seconds to do 20 push-ups a

Romashka [77]

Answer:

It takes 1 seconds for push-ups and 3 seconds for sit-ups for Mei to do exercise.

Step-by-step explanation:

Given:

Let the time taken for push-ups be 'x'.

Let the time taken for sit-ups be 'y'.

Now Given:

17 push-ups and 6 sit-ups, it takes a total of 35 seconds.

So we can say that;

$17x+6y=35 \ \ \ \ equation \ 1$

Also Given:

41 seconds to do 20 push-ups and 7 sit-ups.

so we can say that;

$20x+7y=41 \ \ \ \ equation \ 2$

Now Multiplying equation 1 by 7 we get;

$7(17x+6y)=35\times7\\\\119x+42y= 245 \ \ \ \ equation \ 3$

Now Multiplying equation 2 by 6 we get;

$6(20x+7y)=41\times6\\\\120x+42y = 246 \ \ \ \ equation\ 4$

Now Subtracting equation 3 from equation 4 we get;

$120x+42y-(119x+42y)=246-245\\\\120x+42y-119x-42y=1\\\\x=1\ sec$

Now substituting the value of x in equation 1 we get;

$17x+6y=35\\\\17\times1+6y=35\\\\17+6y=35\\\\6y=35-17\\\\6y= 18\\\\y=\frac{18}6 = 3\ seconds$

Hence It takes 1 seconds for push-ups and 3 seconds for sit-ups for Mei to do exercise.

7 0

3 years ago