SOLUTION: The length of a rectangle is 5x-7 and the width is 3x+2. Find the dimensions if the perimeter is 168 inches.
What I did that my teacher marked wrong:
16x-10=168
16x=178
178/6
Algebra.Com
Question 1107111: The length of a rectangle is 5x-7 and the width is 3x+2. Find the dimensions if the perimeter is 168 inches.
What I did that my teacher marked wrong:
16x-10=168
16x=178
178/6=
11.125*5-7 = 48.65
11.125*3+2= 35.375
When you add it, it doesnt total 168. Please help Ive been on this for ages
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
GIVEN: LENGTH IS 5x-7 AND WIDTH IS 3x+2.
-----------THIS ACCOUNTS FOR THE PERIMETER.
-
and YOU can continue to EVALUATE LENGTH AND WIDTH.
LOOK Carefully at your computations for length and width. You made a mistake in arithmetic for the length and have almost the correct value. Your width value IS correct.
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