A certain company charges $6 per package to ship packages weighing less than 2 pounds each. For a package weighing 2 pounds or more, the company charges an initial fee of $6 plus $2 per pound. If the company charged $38 to ship a certain package, which of the following was the weight of the package, in pounds?
16
17
19
20
22
A certain company charges $6 per package to ship packages weighing less than 2 pounds each. For a package weighing 2 pounds or more, the company charges an initial fee of $6 plus $2 per pound. If the company charged $38 to ship a certain package, which of the following was the weight of the package, in pounds?
题意理解错误!!不是超过2 pounds的重量每pound收$2,而是按包裹重量每pound 2刀,并加收6刀算
假设该包裹重x
则:6+2x=36
x=16
For a package weighing 2 pounds or more, the company charges an initial fee of $6 plus $2 per pound. 该公司收取6美元的初始费用外加每磅2美元,没理解题意做错了
initial fee 这里不要以为是additional
不是超出的每磅收2块 是基础费6块加上每磅两块