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Currently, Sam's coach is twice as old as Sam. When Sam started soccer 10 years ago, his coach was 3 times his age. How old is Sam now?
 one year ago
 one year ago
Currently, Sam's coach is twice as old as Sam. When Sam started soccer 10 years ago, his coach was 3 times his age. How old is Sam now?
 one year ago
 one year ago

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Jiimy20110Best ResponseYou've already chosen the best response.0
dw:1350960568419:dw
 one year ago

Jiimy20110Best ResponseYou've already chosen the best response.0
dw:1350960670105:dw
 one year ago

ChmEBest ResponseYou've already chosen the best response.0
c = 2s c10 = 3(s10) > c  10 = 3s  30 > c = 3s  20 2s = 3s  20 s = 20 c = 40 Wow that should not have been that hard for me. Sorry it took so long
 one year ago

Jiimy20110Best ResponseYou've already chosen the best response.0
dw:1350960915774:dw
 one year ago

ChmEBest ResponseYou've already chosen the best response.0
Now he is twice sam's age. That is where the first equation came from. 10 years ago, so start with c  10 and s  10, the coach was 3 times sam's age. That is where the 3 comes from. I simplified then substituted in the 2s for c to solve for s. Then I knew c
 one year ago

Jiimy20110Best ResponseYou've already chosen the best response.0
can you please solve the new problem on top
 one year ago

ChmEBest ResponseYou've already chosen the best response.0
y/2 + 5 = 12 y/2 + 5  5 = 12  5 y/2 = 7 2 * y/2 = 7 * 2 y = 14
 one year ago

ChmEBest ResponseYou've already chosen the best response.0
\[x=\frac{ x6 }{ 2 } =3\]\[2x=2\times \frac{ x6 }{ 2 } =3 \times 2\]\[2x=x6 =6\]Impossible, was there a typo in your original equation
 one year ago

Jiimy20110Best ResponseYou've already chosen the best response.0
dw:1350961540644:dw
 one year ago
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