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djverab [1.8K]
3 years ago
5

5% sales tax on a $81.08 bookcase

Mathematics
1 answer:
mafiozo [28]3 years ago
3 0
81.08 * .05 = 4.054
$4.05
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The area of a room is 600 square feet. The length is (x+2) feet and the width is (x+3) feet. Find the dimensions of the room
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Create an equation using the formula for area of a rectangle; area = width * length
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Multiply the dimensions.
X^2 + 3x + 2x +6 = 600, or simplified x^2 +5x + 6 = 600.
Subtract 600 to get the following:
X^2 + 5x - 594 = 0
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Solve for x
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X = 22.
Use the POSITIVE VALUE of x as you can’t have a negative area for a room.
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