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Makovka662 [10]
3 years ago
5

Make r the subject of the formula t=r/r-3

Mathematics
2 answers:
Nookie1986 [14]3 years ago
8 0

Answer:

r = \frac{3t}{t-1}

Step-by-step explanation:

t = \frac{r}{r - 3}

Cross multiply,

t(r - 3) = r

tr - 3t = r

     tr  = r + 3t

 tr - r = 3t

 r(t -1) = 3t

 r = \frac{3t}{t-1}

Kisachek [45]3 years ago
7 0

Answer:

r = 3t/(t - 1)

Step-by-step explanation:

t = r/(r - 3)

t(r - 3) = r

tr - 3t = r

tr = r + 3t

tr - r = 3t

r(t - 1) = 3t

r = 3t/(t - 1)

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--
Work shown below:
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