Question

If street lights are placed at most 145

feet apart, how many street lights will be
needed for a street that is 4 miles long,
assuming that there are lights at each end
of the street?

Answer 1

Explanation:

d=4 miles=4×1760 yards=7040 yards=7040×3 ft

number of lights=21120 ft

number of lights=21120/145 +1≈145.7+1=146+1=147 lights