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dusya [7]
3 years ago
12

How do you find the percent of a number

Mathematics
2 answers:
telo118 [61]3 years ago
7 0
To find the percent of a number, just turn the percentage into a decimal. To do that just go 2 decimal places to the left. For example, 25% becomes 0.25. Then, just multiply that decimal by the number you're finding the percentage of. That's it!

Ex. Find 50% of 10

50% becomes 0.5
0.5(10)= 5

50% of 10 is 5.
natulia [17]3 years ago
3 0
You set up a proportion. first, put the percent so if it's 30 percent, it would be 30 over 100. Then, set up the second part. is over of. 
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Use the given information (when x=4 y=4) to find the value of the constant:

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Then, the given relationship has the next equation:

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Use the equation above to find y when x=2:

\begin{gathered} y=\frac{16}{2} \\  \\ y=8 \end{gathered}Then, when x=2, y=8
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