AMC 8 2013 Problem 4

AMC8 2013 年第 4 题

方程与不等式★★☆☆☆

Eight friends ate at a restaurant and agreed to share the bill equally. Because Judi forgot her money, each of her seven friends paid an extra $2.50 to cover her portion of the total bill. What was the total bill?

个朋友在餐馆吃饭，并且商定均摊费用。因为 Judi 忘记带钱了，她的其他 7 个朋友帮她垫付了费用，因此 7 个人每人额外多付了 2.5 美元。那么餐费总共是多少美元？

A. $\text{\textdollar}120$
B. $\text{\textdollar}128$
C. $\text{\textdollar}140$
D. $\text{\textdollar}144$
E. $\text{\textdollar}160$

正确答案 · Correct Answer

解析 · Solution

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