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n200080 [17]
3 years ago
6

Need help, quickly! make r the subject of the formula p=10(q-3r)/r

Mathematics
1 answer:
damaskus [11]3 years ago
3 0

Answer:

Step-by-step explanation:

p=10(q-3r)/r

Cross multiply

pr = 10(q-3r)

pr = 10q - 30r

Pr + 30r = 10q

r(p + 30) = 10q

r = 10q/(p + 30)

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A piece of wire is 8/9 meter long broke into two pieces. One piece is 2/3 meter long. How long is the other?
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Answer:

<h2><em><u>2/9 is the answer.</u></em></h2>

Step-by-step explanation:

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What is the determinant of the coefficient matrix of the system<br> –11<br> –2<br> 0<br> 55
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