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allsm [11]
3 years ago
10

Simplify the complex fraction 7/10÷-2/5

Mathematics
1 answer:
enyata [817]3 years ago
8 0

\bf \cfrac{7}{10}\div \cfrac{-2}{5}\implies \cfrac{7}{\underset{2}{~~\begin{matrix} 10 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\cdot \cfrac{~~\begin{matrix} 5 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{-2}\implies -\cfrac{7}{4}

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Answer:

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Step-by-step explanation:

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12.5%

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when the temperature is 68 F, the speed of sound in air is approximately 343 meters per second. Approximately how many kilometer
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Hello!

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1. A crash repair bill comes to $1380.00. How much is 10% of
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Answer:

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2. 20% of the total is $34.10. The final total once the 20% is taken off is $136.4

Step-by-step explanation:

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To find how much is 10% of the bill, we multiply the bill by 0.1

0.1*1380 = 138

10% of the bill is $138.

To find the final bill, we subtract the initial bill by 10%.

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Same logic as above.

0.2*170.50 = 34.1

20% of the total is $34.10.

170.50 - 34.1 = 136.4

The final total once the 20% is taken off is $136.4

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2 years ago
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