Posted by mike... on Sunday, April 24, 2011 at 2:27pm.
While vacationing,john has dinner at a restaurant in Japan and his tab
comes to 3,428 yen. The exchange rate at the time of his visit is 1 yen = 1.25
cents. What was the cost of the meal in US dollars??

algebra  MathMate, Sunday, April 24, 2011 at 3:10pm
1 yen = 1.25 cents.
100 yens = 125 cents = 1.25$
So 3428 yens = 3428/1.25 $ 
algebra  mike..., Sunday, April 24, 2011 at 4:48pm
Is this the final answer? Or do i need to divide 3428 by 1.25$ to get the final answer?

algebra  MathMate, Sunday, April 24, 2011 at 6:28pm
$3428/1.25 is the same as
$3428÷1.25
Yes, you will have to take the calculator and do the division to get the final answer.
Feel free to post the final answer for verification if you wish. 
algebra  Mike..., Sunday, April 24, 2011 at 6:36pm
I came up with $ 2,742.4

algebra  correction  MathMate, Sunday, April 24, 2011 at 6:50pm
I apologize that I was completely off.
Let's start over.
1 yen equals 1.25 cents = $0.0125
so by direct proportion:
1 yen : $0.0125
3428 yens : $X
so by cross multiplication:
$X = $0.0125*3428yens/1 yen
= $42.85