kellysmith45
05.11.2020 •
Mathematics
A rectangular room is 19.7 m by 7.0 m. What is the side length of a square room with the same area as the room?
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Ответ:
252
Step-by-step explanation:
y varies directly with x means y=kx where k is a constant.
A constant means it never changes no matter what the point (x,y) they give.
So y=kx means y/x=k (I just divided both sides by x here).
So we have the following proportion to solve:
70/10 reduces to 7:
Multiply both sides by 36:
Simplify left hand side:
So y is 252 when x is 36.