contestada

Kenisha uses the Fermi process to estimate the number of dollar bills that would cover her driveway. Her driveway is rectangular in shape.

She estimates a dollar bill to be about 6 in. long and 3 in. wide.
She estimates her driveway to be about 30 ft long and 20 ft wide.
Which expression should Kenisha use in the process?


9×10^4/2×10^2

6×10^2/2×10^1

6×10^2/2×10^2

9×10^4/2×10^1

Respuesta :

ShyzaSling

Answer:

option A

9×10^4/2×10^2

Step-by-step explanation:

Given in the question,

length of dollar bill = 6

width of dollar bill = 3

area of dollar bill = L x W

                            = 6 x 3

                            = 18inches²

length of driveway = 30

width of driveway = 20

area of driveway = L x W

                             = 30 x 20

                             = 600 ft²

1 ft² = 144 inches²

600 ft² = 86400 inches²

Number of dollar bills that would cover Kenisha driveway = 86400 / 18

                                     

Which can also be written as

86400 = 9 x 10[tex]^{4}[/tex]

18        = 2 x 10²

[tex]\frac{9x10^{4} }{2x10^{2} }[/tex]

           

Answer:

Step-by-step explanation:

Ver imagen cassiej77p14cmb

Otras preguntas