Posted by **Pablo** on Tuesday, August 13, 2013 at 1:14pm.

At a certain grocery store, "a" customers each spend an average of $30 every "b" hours. How much revenue , in dollars, does the store collect in "c" hours?

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**Ms. Sue**, Tuesday, August 13, 2013 at 1:24pm
30ab = c

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**Steve**, Tuesday, August 13, 2013 at 1:27pm
c hours * a cust/hr * $30/b cust = 30ac/b $

check:

If 10 customers spend $300 in 5 hours, that's $60/hr, so in 3 hours that would be $180.

30ac/b = 30*10*3/5 = 180

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**Anonymous**, Tuesday, August 13, 2013 at 1:29pm
I also came to that answer, but it isn't one of the choices. The choices are:

(A) 30c/ab

(B) bc/30a

(C) 30bc/a

(D) 30ac/b

(E) 30b/ac

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**Anonymous**, Tuesday, August 13, 2013 at 1:29pm
thanks Steve!

- Steve is right -
**Ms. Sue**, Tuesday, August 13, 2013 at 1:31pm
Steve's answer is right and is one of your choices.

Sorry -- my answer is wrong.

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