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kifflom [539]
3 years ago
10

The middle school population is made up of 55% girls and 45% boys. Of the boys 40% have siblings what percent of the middle scho

ol population has siblings
Mathematics
1 answer:
tester [92]3 years ago
8 0

Answer:2.5%

Step-by-step explanation:

2.5% of the school has sibloings

55+45=100

100÷40=2.5

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Multiply the Polynomials:<br><br> (2x+3) (-x+2y-4)
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The result of multiplying the polynomials is (2x + 3) (-x + 2y - 4) = -2x² + 4xy - 11x + 6y - 12

<h3>How to multiply the polynomials?</h3>

The polynomial expression is given as

(2x + 3) (-x + 2y - 4)

Expand the brackets in the above polynomial expression

So, we have

(2x + 3) (-x + 2y - 4) = 2x * (-x + 2y - 4) + 3 * (-x + 2y - 4)

Open the brackets in the above polynomial expression

So, we have

(2x + 3) (-x + 2y - 4) = -2x² + 4xy - 8x + -3x + 6y - 12

Evaluate the like terms in the above polynomial expression

So, we have

(2x + 3) (-x + 2y - 4) = -2x² + 4xy - 11x + 6y - 12

Hence, the solution is -2x² + 4xy - 11x + 6y - 12

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