# algebra

posted by .

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 -

1 yen = 1.25 cents.
100 yens = 125 cents = 1.25\$
So 3428 yens = 3428/1.25 \$

• algebra -

Is this the final answer? Or do i need to divide 3428 by 1.25\$ to get the final answer?

• algebra -

\$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 -

I came up with \$ 2,742.4

• algebra - correction -

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

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