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Question

# Estimate the difference in the value of 50 U.S. dollar s and 100 Mexican pesos. Assume that one Mexican peso is about 0.068 U.S. dollar.

Solution

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Given that:

One Mexican peso is about $0.068$ U.S. dollar.

To estimate the difference in the value of $50$ U.S. dollars and $100$ Mexican pesos, round $0.068$ to nearest hundredth and multiply by $100$, then subtract.

$\text{The difference} \approx 50-0.07\times 100=50-7=\43$

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