Question

On March 8, 2017, one U.S. Dollar was worth 19.61 Mexican pesos. On that date, how many pesos was 125.29 dollars worth? ROUND TO THE NEAREST HUNDREDTH OF A PESO.

Answer 1

Let x be the amount of pesos that 125.29 dollars was worth. Since the ratio of mexican pesos to dollars is 19.61 to 1, then:

$\frac{x\text{ pesos}}{125.29\text{ dollars}}=\frac{19.61\text{ pesos}}{1\text{ dollar}}$

Solve for x:

$\begin{gathered} x=\frac{19.61\text{ pesos}}{1\text{ dollar}}\times125.29\text{ dollars} \\ =19.61\times125.29\text{ pesos} \\ =2456.9369\text{ pesos} \\ \approx2456.94\text{ pesos} \end{gathered}$

Therefore, the answer is: 2456.94 pesos.