A rectangle has length 8 and width w. If the area is 72, find w.

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Multiple Choice

A rectangle has length 8 and width w. If the area is 72, find w.

Explanation:
The area of a rectangle is found by multiplying its length by its width. With area 72 and length 8, set up 72 = 8 × w. Solve for w by dividing both sides by 8: w = 72 ÷ 8 = 9. This works because 8 × 9 equals 72. Checking other values shows they don’t produce 72 (for example, 8 gives 64, 6 gives 48, 12 gives 96), so the width must be 9.

The area of a rectangle is found by multiplying its length by its width. With area 72 and length 8, set up 72 = 8 × w. Solve for w by dividing both sides by 8: w = 72 ÷ 8 = 9. This works because 8 × 9 equals 72. Checking other values shows they don’t produce 72 (for example, 8 gives 64, 6 gives 48, 12 gives 96), so the width must be 9.

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