The reynolds family drove 385 miles in 7 hours. the keller family drove 477 miles in 9 hours. which family traveled at the higher rate of speed and what was this rate?
a.reynolds; 53 mi/h
b.reynolds; 55 mi/h
c.keller; 53 mi/h
d.keller; 55 mi/h
The theme is a uniform movement characterized by constant speed. Formula for speed is V=S/t reynolds family Vr= 385 / 7 = 55 mi/h keller family Vk = 477 / 9 = 53 mi/h
