Aaron is saving up the battery bicycle. He is hoping to save more than $500 in the next four weeks so that he might be able to buy the new bicycle by the end of the summer. Beginning of the first week, his grandmother gives him $20 as a birthday present. He will also earn money each week working at his dad’s store. How much money will he need to earn each week working at his dad’s store to meet his savings goal?
To save more than $500 in four weeks, Aaron will need to save at least $500.
Starting with $20 from his grandmother, Aaron will need to earn the remaining amount through his work at his dad's store.
Let the amount Aaron needs to earn each week be x.
In four weeks, Aaron will earn:
20 (from grandmother) + 4x (from working) = 500
20 + 4x = 500
4x = 480
x = 120
Therefore, Aaron will need to earn $120 each week working at his dad's store to meet his savings goal.