Acar cruises at a constant rate of 52 miles per hour. use front-end estimation to find an approximation of the time taken by the car to cover 620 miles. a. 10hr b. 12hr c. 16hr d. 20hr

Option B.

Step-by-step explanation:

It is given that a car cruises at a constant rate of 52 miles per hour. It means

Speed of car = 52 miles per hour

Using  front-end estimation, we need find the time taken by the car to cover 620 miles.

In front-end estimation, we approximate the data according to the first digit. So,

Speed of car = 52 miles per hour ≈ 50 miles per hour

Distance = 620 miles ≈ 600 miles

Formula for time:

Substitute distance=600 and speed=50 in the above formula.

The time taken by the car to cover 620 miles is approximate 12 hr.

Therefore, the correct option is B.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

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