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pythagoras123
Group Title
Find C and show your working (steps)
\[\frac{C100}{100}\] = \[\frac{2C60}{C+60}\]
 2 years ago
 2 years ago
pythagoras123 Group Title
Find C and show your working (steps) \[\frac{C100}{100}\] = \[\frac{2C60}{C+60}\]
 2 years ago
 2 years ago

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inkyvoyd Group TitleBest ResponseYou've already chosen the best response.0
Multiply both sides by 100(c+60)
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.0
solve for C, should be a quadratic
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.0
C cannot equal 60, becaue that would mean dividing by 0
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{C100}{100} =\frac{2C60}{C+60}\]Cross multiply.
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.0
\[(C100) (C+60) = (2C60)(100)\]Solve.
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.0
Foo foo give better answer
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.0
But still, make sure C=/=60
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.0
First let him solve @inkyvoyd
 2 years ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.0
I mean, ifthe answer comes out as 60, it won't be accurate, because the denominator is never equal to zero.
 2 years ago

CoCoTsoi Group TitleBest ResponseYou've already chosen the best response.2
(c 100)/100 = (2c60)/ (c+60) denominator are 100 and c+60 LCM = 100(c+60) multiply both sides with 100(c60) (c100)(c+60) = (2c60)(100) (c100)(c+60) =c^2 +60c 100c 6000 =c^2  40c 6000 (2c60)(100) =200c 6000 (c100)(c+60) = (2c60)(100) c^2  40c 6000= 200c 6000 c^2 40c  6000  200c = 200c 200c6000 c^2 240c=0 c(c240)=0 c=0 or c=240
 2 years ago
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