anonymous4321
Answered

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The perimeter of a rectangle is 42 inches. If the width of the rectangle is 9 inches, what is the length?
A.
24 inches
B.
33 inches
C.
12 inches
D.
21 inches

Sagot :

fieryanswererft

Answer:

12 inches

Step-by-step explanation:

let length be L

formula for perimeter of rectangle = 2( length + width )

2( L + 9) = 42

2L + 18 = 42

2L = 24

L = 12 inches

Answer:

C

Step-by-step explanation:

2 x length + 2 x width = perimeter

2 x length + 2 x 9 = 42

2 x length + 18 = 42

Subtract 18 from both sides

2 x length = 24

1 length = 12

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