Mathematics: The perimeter of a rectangle is 90 ft. the ratio of its length to its width is 8 : 7. what are the dimensions of the rectangle? a. 30 ft by 15 ft b. 26 ft by 19 ft c. 24 ft by 21 ft d. 20 ft by 25 ft

The perimeter of a rectangle is 90 ft. the ratio

Ответ:

goldenblobslime

15.03.2022

Length = 8x
Width = 7x
Perimeter = 2*length + 2*width
90ft = 2*8x + 2*7x
90 ft = 16x + 14x
90ft = 30x
30x = 90ft
x = 3ft
Length = 3*8 = 24ft
Width = 3*7 = 21ft.

Thus your Answer is C:

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Ответ:

airbenderjermai

21.10.2020

Mathematics

1.6 dollars
You can use cross multiplication
625/100 is 10/blank
so cross multiply would be 100 multiplied by 100 and divided by 625 would be 1.6

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The perimeter of a rectangle is 90 ft. the ratio of its length to its width is 8 : 7. what are the dimensions of the rectangle? a. 30 ft by 15 ft b. 26 ft by 19 ft c. 24 ft by 21 ft d. 20 ft by 25 ft

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