Question

mr. harris has some money in his wallet. he pays the babysitter $12 an hour for 4 hours of babysitting. his wife gives him $10, and he puts the money in his wallet. by how much does the amount in his wallet change? type your answer.

Explanation:

Step1: Calculate money paid to babysitter

Mr. Harris pays $12 per hour for 4 hours, so total payment is $12\times4 = 48$. This is an outflow, so it's -$48$ (negative because money is leaving the wallet).

Step2: Calculate money added by wife

His wife gives him $10, which is an inflow, so it's +$10$.

Step3: Calculate total change

To find the total change, add the two amounts: $-48 + 10 = -38$.

Answer:

The amount in his wallet changes by -$38$ (or decreases by $38$ dollars).