Multiplying these together, we get:
The square root of x^2 is x, so we have a final expression of 4x.
The square root of x^2 is x, so we have a final expression of 4x.
The length of a picture frame is 6 inches more than the width. For what values of x is the perimeter of the picture frame greate
r than 156 inches?
1 answer:
Answer:
x > 36 in
Step-by-step explanation:
Let x = the width of the picture frame.
Then x + 6 = the length of the frame.
The formula for the perimeter P of a rectangle is'
P = 2l + 2w.
So, the condition is
2l + 2w > 156
2(x + 6) + 2x > 156 Distribute the 2
2x + 12 + 2x > 156 Combine like terms
4x + 12 > 156 Subtract 12 from each side
4x > 144 Divide each side by 4
x > 36
The perimeter of the picture frame will be greater than 156 in if x > 36 in.
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