A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 180 lb and each bo
1 answer:
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Answer: 10
<u>Step-by-step explanation:</u>
varies directly means:
Step 1: solve for k ⇒
Step 2: plug in the given value and k to solve for the missing value:
42(5) = 21(x)
2(5) = x
10 = x
Answer:
Step-by-step explanation:
Given
-- two rectangles
Required
Determine the perimeter of one of the rectangles
First, calculate the area (A) of 1 rectangle
Express as difference of two squares
Area is calculated as:
So, by comparison:
The perimeter is:
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