Question

The what of a laptop is 11.25 inches the width is .75 times the length what is the length of the laptop

Answer 1

The length of the laptop is 3.873 inches, if the what of a laptop is 11.25 inches and the width is .75 times the length.

Explanation:

The given is,

The what of a laptop is 11.25 inches

The width is .75 times the length

Step:1

Formula for area of rectangle (Laptop) is,

`Area, a = lb`............................(1)

Where,

l - Length of the laptop

b - Width of the laptop

Step:2

From given,

`w = 0.75l`

Equation (1) becomes,

`11.25=(0.75l)(l)`

`11.25= 0.75l^(2)`

`l^(2) = (11.25)/(0.75)`

`l^(2)= 15`

`l=√(15)`

`l=3.873` inches

From the length of laptop,

`w=(0.75)(3.873)`

`w=2.905` inches

Step:3

Check for solution,

`11.25=(3.873)(2.905)`

`11.25=11.25`

Result:

The length of the laptop is 3.873 inches, if the what of a laptop is 11.25 inches and the width is .75 times the length.