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ElenaW [278]
3 years ago
14

How do I subtract 6.45 from 81.3

Mathematics
1 answer:
Aleks [24]3 years ago
5 0
Simple just subtract and u get-74.85
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Simply the product -7x/5y * 5x/-7
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We are asked to simplify the expression \frac{-7x}{5y} \cdot  \frac{5x}{-7}, 

what we do is, we form a single fraction where the numerator is the product of the numerators, and the denominator is the product of the denominators, that is:

\frac{-7x}{5y} \cdot \frac{5x}{-7}= \frac{-7\cdot5 \cdot x \cdot x}{5 \cdot(-7) \cdot y}

simplify the common numbers and terms in the numerator and denominator:

\frac{-7\cdot5 \cdot x \cdot x}{5 \cdot(-7) \cdot y}=\frac{5 \cdot x \cdot x}{5  \cdot y}=\frac{x \cdot x}{y}= \frac{ x^{2} }{y}


Answer: \frac{ x^{2} }{y}

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3 years ago
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Carla purchased a hat for $12, a purse for $26, and a dress for $125. The sales tax rate was 5.6 percent. What was the total amo
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Answer:

5/100 = 0.056 sales tax

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2 years ago
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Name 4 pairs of corresponding angles
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Step-by-step explanation:

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3 years ago
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We need to find the total amount of adults and children for 30 total people (adults + children) and only 100$ for them. 30 adults is 120$. We need to take off double the amount of money that would bring it to 100$ because the cost for each child is half of an adult. That way, we have 80$ of adults, and when we fill in the rest with children, we get to 100$ total and 30 total people.

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3 years ago
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