Question

Christopher earns $600 per week and $2.50 for each cell phone he sells. If Christopher earned $697.50 last week, how many cellphone did he sell

Answer 1

39 Phones

Explanation:

2.50x+600=697.50

subtract 600 from both sides to get the equation:

2.50x=97.50

divide each side by 2.50 and you get x=39

Answer 2

He sold 39 phones