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SAT官方每日一题附答案和解析[数学](2019年7月8日)

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Mathematics

During his busiest week as an origami artist, Nate made 20 origami figures per hour on weekdays and 30 per hour on the weekend. During this particular week, Nate made a total of 650 origami figures by working 5 times as many hours on weekdays as he did on the weekend. If he worked x hours on the weekdays and y hours on the weekend, how many total hours did he work during this week?

A.5
B.20
C.25
D.30

重点单词   查看全部解释    
particular [pə'tikjulə]

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adj. 特殊的,特别的,特定的,挑剔的
n.

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equation [i'kweiʃən]

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n. 相等,方程(式), 等式,均衡

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substitute ['sʌbstitju:t]

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n. 代替者,代用品
vt. 用 ... 代替

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solve [sɔlv]

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v. 解决,解答

 
option ['ɔpʃən]

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n. 选择权,可选物,优先购买权
v. 给予选

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