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- anonymous

Coach Johnson is 10 years older than Tim. When Tim started football 3 years ago, Coach Johnson was twice his age. How old is Tim now?
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- anonymous

- schrodinger

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- anonymous

@ANAS23 comment and ill give you the medal

- anonymous

seems complicated but not hard. So the facts u given is that he is 10 years older and tim played football 3 years ago making coach twice his age. i prob cant give an equation. but i can get u an answer.
the answer is that tim was tim was 10 when he started. when he started tim was 10 and the coach was 20 thats double. than 3 years later tim is 13 and coach is 23.

- anonymous

1) C = coach; T = Tim
C = T + 10;
C-3 = 2(T-3), so C = 2T - 6 + 3 = 2t - 3
2t - 3 = t + 10
t = 13, Tim's age now, so coach is 23; three years ago they were 10 & 20

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- anonymous

my medal

- anonymous

thanks :)

- anonymous

Let's assign:
Coach Johnson's age : J
Tim's age: T
Now according to our data we have: Coach Johnson is 10 years older than Tim
That means: J = T+10
Also, three years ago, Coach Johnson was twice his age.. That means:
J-3 = 2*(T-3)
Let's solve this set of equations using substitution:
J-3 = (T+10)-3 = 2T -6 => T=7+6 => T = 13 therefore Tim's age is 13 years old
J=T+10 => J=23 therefore coach Johnson's age is 23 years old..
This is correct since they have 10 years difference and three years ago Tim was 10 and Johnson was 20, so tthe coach had twice Tim's age.
Solved! :D

- anonymous

mine is easier to understand

- anonymous

@Fox is right.

- anonymous

true^ @Fox375 comment on my next one and ill give you a meda;. it doesnt have to be correct ou deserve a medal :)

- anonymous

medal*

- nubeer

lol why so desperate for medals.?

- anonymous

i need points fast

- anonymous

im not, they are x) idunno why lolz

- anonymous

My same question @nubeer lol

- nubeer

lol i was asking them.. medals dont help to increase your smart score.

- anonymous

whatever

- anonymous

fiesty... XD

- anonymous

whatev

- anonymous

@Lyndsey_Coach_xox thaks

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