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The length of rectangle is 7 inches more than it's width and it's area is 228 square inches. What are the dimensions of the rectangle?


What is the representation of the length and width of the rectangle?

A. Width=x & length= + 7
B. Width= x+7 & length= x
C. Width=x & length= 228 in²
D. Width = 228 in² & length=x + 7

What are the dimensions of the rectangle?

A. W= 12, L =19
B. W = 19, L = 12
C. W= 7, L = 10
D. W = 10, L = 7​


Sagot :

Answer:

the length is 19

the width is 12

Step-by-step explanation:

if x= width, x+7= length then x(x+7) = 228, x^2 + 7x = 228, x^2 + 7x - 228 = 0, (x+19)(x-12) = 0, x+19=0, x-12= 0 , x= -19, x= 12 ,

substitute x with 12 or -19, width: x=12 and length: x+7= 12+7= 19

// width: x= -19 and length: x + 7= -19 + 7= -12