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Andreas93 [3]
3 years ago
14

Make r the subject of the formula

Mathematics
2 answers:
m_a_m_a [10]3 years ago
8 0

Answer:

r = \frac{p - a}{(p + a)}

Step-by-step explanation:

p =  \frac{a(1 + r)}{(1 - r)}  \\ p(1 - r) = a(1 + r) \\ p - pr = a + ar \\ p - a = pr + ar \\ p - a = r(p + a) \\  \frac{p - a}{(p + a)}  =  \frac{r(p + a)}{(p + a)}  \\ \frac{p - a}{(p + a)}  = r

hope this helps

brainliest appreciated

good luck! have a nice day!

zloy xaker [14]3 years ago
3 0

Answer:

r=\frac{-a+p}{a+p}

Step-by-step explanation:

-pr+p=ar+a

-ar-pr+p=a

-ar-pr=a-p

r(-a-p)=a-p

r=\frac{-a+p}{a+p}

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