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elena-14-01-66 [18.8K]
3 years ago
13

Help please k/2+9=30

Mathematics
1 answer:
Dafna11 [192]3 years ago
5 0
\frac{k}{2}+9=30\ \ \ | subtract\ 9\\\\
\frac{k}{2}=21\ \ \ | multiply\ by\ 2\\\\
k=42\\\\Solution\ is\ 42.
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Get a calculator

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Most of the time for simple math like multiplying 2 digits, it is easiest if you just get a calculator. It saves a lot of time.

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4 0
3 years ago
9 11/12- 2 8/11 is a problem that i need help on
Vitek1552 [10]
Hey there!!

Okay here are the steps you can follow!

9 11/12  ---->  improper fraction  ----> 119/12
2 8/11  ---->  improper fraction  ---->  30/11

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(119/12  -  30/11) * 132
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1309 - 360
<u>949</u>
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