3 years ago

I am attaching the question

Mathematics

1 answer:

mafiozo [28]3 years ago

4 0

Answer:

r = $\frac{120t}{120-t}$

Step-by-step explanation:

Multiply both sides by r + 120.

t (r + 120) = 120r

Expand.

tr + 120t = 120r

Subtract tr from both sides.

120t = 120r - tr

Factor out the common term r.

120t = r (120-t)

Divide both sides by 120 - t.

$\frac{120t}{120-t}$ = r

Finally, switch r to the left side and you get your answer.

//also, sorry for answering late.. my wifi is poopy//

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