Janice rode her bike at an average of 12 miles per hour for 3 hours. Renee rode her bike at an average of 14 miles per hour for 2 hours.
Which explanation correctly tells how to calculate how many more miles Janice rode her bike than Renee?
A.
Step 1 Divide: 12 ÷ 3.
Step 2 Divide: 14 ÷ 2.
Step 3 Add the two quotients.
B.
Step 1 Divide: 12 ÷ 3.
Step 2 Divide: 14 ÷ 2.
Step 3 Subtract the two quotients.
C.
Step 1 Multiply: 12 × 3
Step 2 Multiply: 14 × 2.
Step 3 Add the two products.
D.
Step 1 Multiply: 12 × 3
Step 2 Multiply: 14 × 2.
Step 3 Subtract the two products.