On a trip from Lousiana to Flordia, your family wants to travel at least 420 miles in 8 hours of driving. Write and solve an inequality to find what your average speed must be.

2 answers

D = RT (distance = rate x time)
R = rate

8R >= 420
R >= 52.5
420<8x
8 <8
52.5<x

420<8(53)
420<424

just so you know the less than symbols are all supposed to be less than or equal to.