A car is traveling at a constant speed. After 2.5 hours, the car has traveled 80 miles. If the car continues to travel at the same constant speed, how many hours will it take to travel 270 miles?

Answer 1

80/2.5 = 80/5/2 = 80(2/5) = 16(2) = 32 mph

270/32 = 135/16 = 8 7/16 hours

= 8.4375 hours

= 8 hours, 26 minutes and 15 seconds to go 270 miles, at the same speed

32 miles in one hour

in 8 hours that's 8x32 = 258 miles

in 8 1/2 hours, 258+32/2 = 274 miles

in 8 1/4 hours 258+ 8 = 264 miles

in 8 3/8 hours 264 +4 = 268 miles

in 8 7/16 hours 268+2 = 270 miles