Mike's mom gave him $25.00 on Monday morning to use on lunches. At his school, the school lunch costs $1.50, which he bought Monday through Thursday. On Friday, he decided to buy 4 slices of pizza instead of buying the school lunch. If the pizza costs $1.20 per slice, then how much of the money is left at the end of the school week?

Question

A.
$14.20
B.
$19.60
C.
$15.70
D.
$15.40

Answer 1

To determine how much money Mike has left at the end of the school week, we will first calculate his total expenses.

1. Calculate the cost of school lunches from Monday to Thursday:

   • Cost of one school lunch: $1.50
   • Number of lunches: 4 (Monday through Thursday)
   • Total cost for school lunches: \[ 4 \text{ lunches} \times 1.50 \text{ per lunch} = 6.00 \]

2. Calculate the cost of pizza on Friday:

   • Cost of one slice of pizza: $1.20
   • Number of slices: 4
   • Total cost for pizza: \[ 4 \text{ slices} \times 1.20 \text{ per slice} = 4.80 \]

3. Calculate the total expenses for the week:

   • Total expenses = Cost of school lunches + Cost of pizza \[ 6.00 + 4.80 = 10.80 \]

4. Subtract total expenses from the amount given by mom:

   • Initial amount: $25.00
   • Amount spent: $10.80
   • Amount left: \[ 25.00 - 10.80 = 14.20 \]

Therefore, the amount of money Mike has left at the end of the school week is $14.20.

The correct answer is A. $14.20.