急!用英文問的數學題?
回答 (2)
2015-08-26 5:56 am
✔ 最佳答案
33.Let $y be the original amount of her savings.
y ‒ (1/8)y ‒ (5/6)y = 130
(24/24)y ‒ (3/24)y ‒ (20/24)y = 130
(1/24)y = 130
y = 130 × 24
y = 3120
the original amount of her savings = $3120
2015-08-26 5:44 am
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收錄日期: 2021-04-20 15:58:23
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