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4 years ago

8

One side of a rectangle is 3 inches shorter than the other side, and the perimeter is 54 inches. What are the dimensions

1 answer:

vodomira [7]4 years ago

8 0

Answer:

2(x-3)+2x=54

Step-by-step explanation:

Take the side length of the rectangle as x

For the perimeter we must have - as we also have 2 lots of a side that is 3 inches shorter than x.

$2x + 2(x-3) = 54$

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et f(x) = x + |2x − 3|. Find all solutions to the equation f(x) = 12. (Enter your answers as a comma-separated list. If an answe

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Answer:

1. {5,-9}

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Step-by-step explanation:

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$h(x-1)=x-3$

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$x-1=3x-10\,\,\text{or}\,\,x-1=-(3x-10)$

$-2x=-9\,\,\text{or}\,\,4x=11$

$x=9/2\,\,\text{or}\,\,x=11/4$

But, x=11/4 is not a solution of this equation. So the unique solution is x=9/2.

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