if street lights are placed at most 150 feet apart, how many street lights will be needed for a street that is 2 miles long, assuming that there are lights at each end of the street?

Question

Mathematics

Adonis Benitez

4 May, 17:01

if street lights are placed at most 150 feet apart, how many street lights will be needed for a street that is 2 miles long, assuming that there are lights at each end of the street?

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Answers (1)

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Christian Cameron · Answer 1

Answer: We need 741 street lights for a street that is 2 miles long.

Step-by-step explanation:

We know that 1 mile = 5280 feet

Then, 2 miles = 2 x 5280 = 10560 feet

Given : Street lights are placed at most 150 feet apart.

Then, the number of intervals in 2 miles long street = 2 miles : 150

= (10560 feet) : 150

= 70.4 ≈ 70 [The distance between streets cannot be greater than 150 feet.]

If there are lights at each end of the street, then we need to starts from one end.

Total lights = Number of interval + 1

=70+1 = 71

Hence, we need 741 street lights for a street that is 2 miles long.