Anonymous
Anonymous asked in Science & MathematicsMathematics · 8 years ago

# m=r/1+rt for r solve for r?

solve for r

Relevance

m + mrt = r

r(1 - mt) = m

r = m/(1 - mt)

• (1) If m = (r/1) + rt, than:

=> m = r + rt

=> m = r(1+t)

=> r = m/(1+t) <<<

(2) If m = r/(1+rt), than:

=> m(1+rt) = r

=> m + mrt = r

=> r - mrt = m

=> r(1-mt) = m

=> r = m/(1-mt) <<<

• do you mean m=r/(1+rt)

to solve for r , you need to express r in terms of everything else,in other words, isolate r on one side of the equality

multiply both sides of the equality by (1+rt)

m(1+rt) = r expand the brackets....

m + rtm =r subtract rtm from both sides...

m = r-rtm take r out as a common factor...

m = r(1-tm) divide both sides by (1-tm)

we solve for r

r = m/(1-tm)

• m=r/1+rt; r/1=>r

m=r(1+t)

m/(1+t)=r

• m...............r

***....=....*******.............Cross Multiply

1............1 + rt

r*1 = m*(1 + rt)

r = m + mrt

r - mrt = m

r(1 - mt) = m

r = m / (1 - mt).............ANSWER

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