If a rectangle has length 9 and width w, and area is 63, what is w?

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Multiple Choice

If a rectangle has length 9 and width w, and area is 63, what is w?

Explanation:
Area is found by multiplying length by width in a rectangle. With length 9 and area 63, the equation is 9 × width = 63. Solving for width gives width = 63 ÷ 9 = 7. Quick check: 9 × 7 equals 63, so the width is confirmed. The other numbers would yield different areas (for example, 9 would give 81, 6 would give 54, and 8 would give 72), which don’t match the given area.

Area is found by multiplying length by width in a rectangle. With length 9 and area 63, the equation is 9 × width = 63. Solving for width gives width = 63 ÷ 9 = 7. Quick check: 9 × 7 equals 63, so the width is confirmed. The other numbers would yield different areas (for example, 9 would give 81, 6 would give 54, and 8 would give 72), which don’t match the given area.

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