Question

Jennifer is saving money to buy a bike. The bike costs $236. She has $124 saved, and each week she adds $16 to her savings. How long will it take her to save enough money to buy the bike ?

Answer 1

About a average of 2 weeks

Answer 2

The equation will be written as $236=$16x+$124, where $236 is what she wants to save, $124 is what she already saved, and x is the number of weeks where she adds $16. 

So,
$236=$16x+$124
$236-$124=$16x
$112=$16x
$112/$16=x
x=7

She needs exactly 7 weeks to be able to have enough money to get her bike.