Word Problem Wednesday: A Slice of the Pie

By Mathnasium | September 9, 2020

Solutions

Excellent!  Are you ready to check your answer? Look below to see if your solution matches ours.

Lower Elementary:
Answer:  48 slices
Solution:  The team makes 2 × 3 = 6 pies. If each pie is cut into 8 slices, that’s 6 × 8 = 48 slices in total.

Upper Elementary:
Answer:  $8.00
Solution:  If the average of all 4 pies is the same as the price of the peach pie, then the average of the first 3 pies must be equal to the price of the peach pie. To find the average price of the pies, we add the prices of the first 3 pies together, and then divide by 3.
$6.00 + $11.00 + $7.00 = $24.00
$24.00 ÷ 3 = $8.00

Middle School:
Answer:  $0.51
Solution:  To find 15% of $16.60, we multiply $16.60 × 0.15 = $2.49. If Daniel rounds up to the next dollar, he will round by $3.00 – $2.49 = $0.51.

Algebra and Up:
Answer:  17/9 pounds
Solution:  After Soren takes a 40° slice, there are 320° of pie left. That’s 320 ÷ 360 = 8/9 of the pie, and 8/9 of 2 pounds is 17/9 pounds of pie.