Question

Janelle wants to buy a new surfboard. She has saved $120 from babysitting. The surfboard she wants costs $570. How much more does she need to save to be able to buy the surfboard? Define the variable, write an equation, solve the equation algebraically, and check your solution. *

Answer 1

x = $450

Explanation:

Total cost of the surfboard = $570

Total amount saved from babysitting = $120

Amount remaining = $x

Total cost of the surfboard = Total amount saved from babysitting + Amount remaining

$570 = $120 + $x

Subtract 120 from both sides

570 = 120 + x

570 - 120 = 120 + x - 120

450 = x

x = $450

Check:

570 = 120 + x

570 = 120 + 450

570 = 570