Mitchell travels from the us to canada, where he exchanges 150 us dollars for canadian dollars. he then spends 20 canadian dollars, returns to the us, and exchanges the remaining money back to us dollars. how many us dollars does mitchell have remaining?
the answer is 130.66

We know that 1 USD equals 1.31 CAD. If Mitchell exchanges 150 USD, how much CAD would be?

Then, he spends 20 CAD, so he return to the US with 176.50 CAD. How much USD would he have?

Therefore, Mitchell would have 134.70 USD.

Going by current exchange rates, Mitchell has $134.13 dollars remaining.

The current exchange rate of Canadian dollars to US dollars is:

CAD $ 1.26 : 1 USD

When Mitchell first exchanged the USD to CAD$, it became:

= 150 x 1.26

= CAD$ 189

He then spends CAD$ 20 which leaves him with:

= 189 - 20

= CAD$ 169

He then exchanges this back to US$:

= 169 / 1.26

= US$ 134.13

Mitchell has US$ 134.13 remaining.

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step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)