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tatyana61 [14]
3 years ago
15

What is the answer? x+y=15 -2x+5y=-2​

Mathematics
1 answer:
zavuch27 [327]3 years ago
6 0
Multiply the first equation by 2

2x + 2y =30

now we’ll add the second equation to the first equation

2x + 2y =30
-2x+5y= -2

7y=28

divide by 7

y=4

now plug y back into the first equation

x + 4 = 15

subtract 4

x=11
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To solve this problem you must apply the proccedure shown below:

 1. You have that the formula for calculate the area of a triangle is:

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 2. The problem asks for the new area of the triangle <span>if its base was half as long and its height was three times as long. Then, you have:

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4 years ago
The diameter of an insect cell is 1.7 × 10–11 meter. Ariel wants to find the length of the radius of the cell. If she performs t
Juli2301 [7.4K]

Answer:

8.5E-12

Step-by-step explanation:

According to the Question,

Given That, The diameter of an insect cell is 1.7 × 10^-11 meters.

Ariel wants to find the length of the radius of the cell. Radius Is Half of the Diameter.

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4 1/4 + 3 2/6 solved <br>​
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Step-by-step explanation:

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