jphillips1980
jphillips1980 jphillips1980
  • 25-04-2017
  • Mathematics
contestada

a rectangular us four times as long as it is wide. if the area is 144 ft^2,find the length and width of the table

Respuesta :

B23R
B23R B23R
  • 25-04-2017
x(4x) = 144 {area is width x length}
4x^2 = 144 {multiplied x by 4x}
x^2 = 36 {divided both sides by 4}
x = 6 {took square root of both sides}
4x = 24 {substituted 6, in for x, into 4x} 

width = 6ft and length = 24ft
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