Question

In Mexico people use pesos for money. There are about 12.8 pesos in 1 dollar. About how much is 1 peso worth in dollars? Show your work, and give your answer to the nearest hundredth of a dollar and a nursing.

Answer 1

$0.08 (rounded to nearest hundredth, 2 decimals)

Explanation:

This is very easy if we setup a unitary method ratio.

" If 12.8 pesos equal 1 dollar, 1 peso is HOW MANY (let it be x) dollars?"

We translate the above sentence in ratio and solve for x:

`(Peso)/(Dollar)=(12.8)/(1)=(1)/(x)\\12.8x=1\\x=(1)/(12.8)\\x=0.08`

Thus, it is worth about $0.08