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3 years ago

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William got $150 for making all A’s on his report card. He wants to spend it on CDs and DVDs. The local video store is having a

sale; all CDs are $10 and all DVDs are $15. Which of the following is a possible combination of CDs and DVDs?

1 answer:

olga55 [171]3 years ago

3 0

What are the options?

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1. i think 5 to 9
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2 years ago

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Black_prince [1.1K]

The answer is C. 14.6.

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3 years ago

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Please help me ! Reduced to lowest terms

Mandarinka [93]

Answer:

Step-by-step explanation:

7) 2ab + 4ac = 2*a*b + 2 *2 *a*c

= 2a(b + 2c)

$\dfrac{2ab^{2}c}{2ab+4ac}=\dfrac{2*a* b^{2}*c}{2a(b+2c)}\\\\\\\text{2a in the denominator and numerator get cancelled}\\\\ = \dfrac{b^{2}c}{b+2c}$

8) ac - a²c² = c( a - a²c)

bc - abc = c(b - ab)

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9) b²+ 4b - 5 = b² + 5b - 1b - 5

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b² + 8b + 15 = b² + 5b + 3b + 15

= b(b + 5) + 3(b + 5)

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$\dfrac{b^{2}+4b-5}{b^{2}+8b+15}=\dfrac{(b+5)(b-1)}{(b+5)(b+3)}\\\\\\$

$=\dfrac{b-1}{b+3}$

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2 years ago

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Answer:

a) 17, 29, 41, 53, 65....

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3 years ago