← 线性建模・建立方程 · 题库进阶

ONE QUESTION, ONE STEP

ZX-E23D4008AF

Bluebook试题11 · 第 4 题

Bluebook试题11 · 原库模块 1 · Q4 原库参考解析

\( 8x+11y=170 \) 
The equation gives the possible combinations of the number of 2009 premium grade Log Cabin Pennies, x, and the number of 1996 select grade Lincoln Pennies, y, in a collection that is worth a total of $170. If there are 6 1996 select grade Lincoln Pennies in the collection, how many 2009 premium grade Log Cabin Pennies are in the collection?

支持整数、小数和分数;循环小数建议填写分数,不需要写单位。