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(x)/(1100+x)*1000000=200 How can i solve this?

 Oct 22, 2014

Best Answer 

 #3
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big thanks =) =)

 Oct 23, 2014
 #1
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(x) / (1100 + x) *1 000 000  = 200

First divide both sides by 1 000 000:

(x) / (1100 + x)  =  0.000 2

Multiply both sides by 1100 + x:

x  =  0.0002(1100 + x)

x  =  0.22 + 0.0002x

Subtract 0.0002x from both sides:

0.9998x  = 0.22

Divide both sides by 0.9998:

x  =  0.22 / 0.9998

This will become your answer. (It's a long decimal.)

 Oct 22, 2014
 #2
avatar+118612 
+5

$$\\\frac{x}{1100+x}*1000000=200\\\\
$Divide both sides by 1000000$\\\\
\frac{x}{1100+x}=200/1000000\\\\
\frac{x}{1100+x}=0.0002\\\\
$multiply both sides by 1100+x NOTE x cannot =-1100$\\\\
x=0.0002(1100+x)\\\\
x=0.22+0.0002x\\\\
$Multiply both sides by 10000$\\\\
10000x=2200+2x\\\\
9998x=2200\\\\
x=\frac{2200}{9998}\\\\
x=\frac{1100}{4999}\\$$

.
 Oct 22, 2014
 #3
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+5
Best Answer

big thanks =) =)

Guest Oct 23, 2014

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