Frederick Owens

Mathematics

4 March, 19:08

Madelyn drove a race car in a race. She averaged 55 mph and began the race 0.5 hours ahead of the other drivers. The variable d represents Madelyn's distance driven, in miles. The variable t represents the number of hours since the other drivers began to race. Which equation can be used to determine the distance Madelyn drove t hours into the race?

a. d=55 (t+0.5)

b. d=55 (t-0.5)

c. d=55t-0.5

d. d = 55t + 0.5