40 mph would be 120 miles in 3 hours (120/40)
80 mph is 120 miles in 1.5 hours(120/80)
3 - 1.5 = 1.5, not 3 hrs
Change the speed to 20 mph( 1/2 the speed) to double the hours.
20 mph = 6 hours(120/20)
40 mph = 3 hrs(120/40)
6 - 3 = 3 hours difference
Answer:
5
Step-by-step explanation:
Based on the given conditions, formulate:: 8-3
Calculate the sum or difference: 5
50/6 as a mixed number is 8 2/6 which equals 8 1/3
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In the general case, it is (x, y+3), where y = f(x).
