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77julia77 [94]
3 years ago
7

The perimeter of a rectangle is 120 inches. The length is 10 more than the width. Find the length and width

Mathematics
1 answer:
OLga [1]3 years ago
4 0

The formula of a perimeter of a rectangle:

P=2(l+w)

We have:

P=120\ in\\\\l=w+10

Substitute

2(w+10+w)=120\\\\2(2w+10)=120\ \ \ \ |:2\\\\2w+10=60\ \ \ \ |-10\\\\2w=50\ \ \ \ |:2\\\\w=25\\\\l=25+10=35

<h3>Answer: Length = 35 in, Width = 25 in.</h3>
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based on the equation he would make $2.5 in the first month but realistically he would earn around $30 in the first month

Step-by-step explanation:

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Question 7<br> Solve the Equation:<br> D(7) = ?<br> D= 8
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Step-by-step explanation:

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scoray [572]
Let me express the equation clearly:

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The other easy way is to substitute x=-8.999 to the original equation. Note that the term x→-9 means that x only approaches to -9. Thus, you substitute a number that is very close to -9. Substituting x=-8.999

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In this case, we must first isolate y.


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Now follow the steps above.


8 0
3 years ago
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