Mathematical Reasoning第 40 / 120 题
Solve for y: y/4 = 9.
a.13
b.5
c.2.25
d.36
解析
Multiply both sides by 4 to undo the division, giving y = 36. Since y divided by 4 equals 9, y must be 4 times 9. Checking: 36 ÷ 4 = 9, which is correct.
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