The perimeter of a rectangle is 90 ft. Find the dimensions of the rectangle if the ratio of the length to the width is 8: 7.

What equation can be used to find the two numbers whose ratio is 4 to 3 and that have a sum of 42?

8x length 7x width

perimeter =30x =90

x=3

Length =24

Width =21

4x and 3x are the numbers

7x =42

x=42/7 =6

numbers are 24 and 18

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