Answered

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due to construction, the speed limit along an 8-mile section of highway is reduced from 55 miles per hour to 35 miles per hour. approximately how many minutes more will it take to travel along this section of highway at the new speed limit than it would have taken at the old speed limit?

Sagot :

Due to construction, approximately 5 minutes more will it take to travel along this section of highway at the new speed limit than it would have taken at the old speed limit.

Given that,

length of highway is 8 miles

Reduced length is 55 miles

Hours taken is 35 miles per hour.

Let t₁ is time taken is 55 mph

t₁ = 8/55

Let t₂ is time taken is 35 mph

t₂ = 8/35

Difference in time = 8/35 - 8/55

= 8 × 20 / (35 * 55) hour

= 160 × 60 / (35 × 55) mins

= 4.7

= 5 minutes (approximately)

Learn more about Speed Limit:

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