The train to boston traveled at an average speed of 50 miles per hour for 5 hours. the train to hartford traveled at an average speed of 48 miles per hour for 4 hours.

which method explains how to calculate the difference in the distances the two trains traveled?

a.
step 1 divide: 50 ÷ 5.
step 2 divide: 48 ÷ 4 .
step 3 add the two quotients.

b.
step 1 multiply: 50 × 5.
step 2 multiply: 48 × 4.
step 3 subtract the two products.

c.
step 1 multiply: 50 × 5.
step 2 multiply: 48 × 4.
step 3 add the two products.

d.
step 1 divide: 50 ÷ 5.
step 2 divide: 48 ÷ 4.
step 3 subtract the two quotients.