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valentina_108 [34]
3 years ago
14

FIRST CORRECT ANSWER GETS A BRAINLIEST +50pts!!!

Mathematics
2 answers:
Sati [7]3 years ago
8 0

Answer:

y = 10.50x + 7.50

Step-by-step explanation:

First find the slope

m = ( y2-y1)/(x2-x1)

   Add the two y values  to get the total y for the slope

y2 = 5.50+4 = 9.50  when x=2

y1 = 3.50+ 2.50 = 6  when x =1

m = ( 9.50-6/(2-1)

    3.50/1

  = 3.50

The slope intercept form is

y = mx+b  where m is the slope and b is the y intercept

y = 3.50x +b

Using the point ( 1,6)

6 = 3.50(1) + b

6 - 3.50 = 3.50+b-3.50

2.50 =b

y = 3.50x+2.50

We want 3 shipments

Multiply by 3

y = 10.50x + 7.50

Ksenya-84 [330]3 years ago
3 0

Answer:

d

Step-by-step explanation:

BRAINLIEST

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pishuonlain [190]

Hello!

If you add up the squares of the two legs, it will equal the square of the hypotenuse. As we already have the hypotenuse, we will subtract.

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o-na [289]

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To find our answer, we need to set up a <u><em>system of equations. </em></u>Remember, <u><em>supplementary angles</em></u> equal 180 degrees when combined. We will call one of our angles A and the other one B. Let's set it up below! :)

A=2B-15 (one angle is 15 degrees less than twice the other)

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We need to find one of our variables. To do this, we only put one variable in the equation. But how, there are two variables in both equations! Well, as you can see, we see the A is equal to 2B-15, so we can take 2B-15 and put it into the second equation in place of A because it is equal to A, and then we will only have Bs and we can solve for it. This method is known as solving systems of equations with <u><em>substitution.</em></u>

Let's solve with substitution!

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Now, we need to find what A is, but this will be really easy to do! If you remember, our angles are supplementary, so when you combine them, we will get 180, as you can see in our second equation in our first system of equations. So, we simply subtract 65 from 180.

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We can also check this with the original problem.

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I hope this helps! Have a great day!

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