Question

Solve this problem on paper using all four steps.

A girl scout troop sold cookies. If the girls sold 5 more boxes the second week than they did the first, and if they doubled the sales of the second week for the third week to sell a total of 431 boxes of cookies, how many did they sell each week?

They sold boxes the first week, boxes the second week, and boxes the third week.

Answer 1

Answer:

104 boxes were sold in week 1, 104+5=109 boxes were sold in week 2 and 109×2=218 boxes were sold in week 3.

Step-by-step explanation:

Sum of all boxes sold

x+(x+5)+2(x+5)=431

x+x+5+2x+10=431

4x+15=431

4x=431-15

4x=416

Answer 2

Answer:

104 boxes were sold in week 1, 104+5=109 boxes were sold in week 2 and 109×2=218 boxes were sold in week 3.