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miss Akunina [59]

4 years ago

11

The lengths of the sides of a rectangular window have the ratio 1.2 to 1. The area of the window is 811.2 square inches. What ar

e the dimensions of the window?
a. 26 inches by 31.2 inches
b. 26 inches by 37.44 inches
c. 28.48 inches by 28.48 inches
d. 26 inches by 52 inches

1 answer:

GrogVix [38]4 years ago

3 0

Answer:

a. 26 inches by 31.2 inches

Step-by-step explanation:

The lengths(X) of the rectangular is 1.2 times longer than the width (Y), so you can put it into this equation

x= y * 1.2

x= 1.2 y

The area of the window is 811.2 square inches, so you can put this equation

x * y= 811.2

Combining both equations, you can get

x * y= 811.2

(1.2y) * y = 811.2

1.2y^2= 811.2

y^2= 676

y= 26

x= 1.2 y

x= 1.2(26)= 31.2

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