On Saturday, Jamaal drove 286 miles in 5 1/2 hours. What was Jamaal's average speed in miles per hour? (Hint: Use r = d/t)

5.5 into 286.

It is 52.

Not sure I'll get this 100% right but I'm pretty confident.

by using r=d/t you're saying what you need (r) is got by putting distance (d) over time (t) so this equation should be as simple as doing 286/5.5 (.5 comes from the " half hour") which gives you 52 miles per hour it's already in miles per hour so you don't have to change anything else from there