Answer:
6x - 1
Step-by-step explanation:
Okay this is basically polynomial algebra:
1. Add the value of the lengths already given.
like terms: 3x + x = 4x, -4 + 2 = -2. Now you're left with, 4x - 2.
2. Find the difference between the perimeter and the sum of the lengths.
(10x -3) + (4x + 2) = 6x - 1
Two dimes and six pennies
Area is length x width. If the area is 6480, and you know the length, plug it into the formula to find the width.
120 x width = 6480
So, to solve, you would divide 6480 by 120 to find the width. 6480/120 = 54.
Therefore, the width is 54.
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Answer:
w = -12
Step-by-step explanation:
10 – 11w + 12w = -2
Combine like terms
10 +w = -2
Subtract 10 from each side
10+w-10 = -2-10
w = -12