Mathematics: The lenght of a rectangle deck is 4 times its width if the decks perimeter is 30 ft, what is the decks area?

Ithink it s : [tex] rac{2}{6} + rac{1}{5} = rac{8}{15} [/tex]i am not sure though...

The lenght of a rectangle deck is 4 times its width

Ответ:

jadentdaniels

30.05.2020

Define x :

Let the width be x.
Width = x
Length = 4x

Find x :

Perimeter = 30 ft
2 (x + 4x) = 30
2(5x) = 30
10x = 30
x = 30 ÷ 10
x = 3

Find Length and Width :

Width = x = 3
Length = 4x = 4(3) = 12

Find Area :

Area = 3 x 12 = 36 ft²

Answer : Area = 36 ft²

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Ответ:

ed72018373

28.06.2020

Mathematics

Ithink it's : $\frac{2}{6} + \frac{1}{5} = \frac{8}{15}$ i am not sure though

0,0(0 оценок)

The lenght of a rectangle deck is 4 times its width if the decks perimeter is 30 ft, what is the decks area?

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