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Ok. First find how much work is done individually in one hour.

So, if Jeff does the work in 2 hours, how much will he get done in 1 hour?

the whole car?

so What equation is used to solve this problem? What does each variable represent?

oh ok so thats the equation we use?

oh thanks! so whats the solution?

can i cross multiply to get the solution?

so it would be the fraction of 6/7 ??

yup :)

:) so thats the solution?

I believe so :)

and last question, so how long does it take for BOTH of them to wash the car together?

That's the answer...

i plug in the solution and thats the time it takes for both of them...right

The solutions 6/7 is how long it takes to wash the car.

but that doesnt make sense lol

I'm pretty sure that it would take 6/7 of an hour to wash the car together though...

\OHH 6/7 of an hour. ok now it makes sense. thanks for all your help :)

np :)

Work done in an hour is itself the rate - isn't it? ;)

lol...I have always been confused at this part...I'll take your word for it XD

No, don't take 'my' word - understand it and take your brain's word then ;)

Ok.
\[\frac 1x = \frac 76 = \text{Work rate}\]\[\]

Than last question. What exactly would 6/7 be then?

lol. no worries ;)

I thought *1/2 + 1/1.5* was 6/7 - so I made that mix-up. Apologies once again!