Applying the concepts of area, answer the following questions. a. a contractor is covering a square driveway with gravel. one side of the driveway is 22 feet long. how many square feet of ground will he need to cover with gravel? b. michael is buying a 196-square-foot piece of carpet to put in his square bedroom. what is the length of one of the walls in his room?

a) 484 square feet of ground will be needed to cover with gravel.

b) 14 feet is the length of one of the walls in his room

Step-by-step explanation:

Area of the square =

a) Length of the side of the square driveway ,s= 22 feet

Area of ground covered by gravel be A.

Area enclosed by square driveway is equal to area of ground covered by gravel.

Area of square driveway = A=  

484 square feet of ground will be needed to cover with gravel.

b) Area of the square carpet ,A=

Area of the square carpet is equal to the area square bedroom

Length of the square carpet = s

Length of the carpet = Length of the room of Micheal's bedroom

s = ±14 ft

Ignoring the negative value , we get :

s = 14 ft

14 feet is the length of one of the walls in his room.

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