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Ricardo spent half of his allowance an school supplies. Then he bought a snack for $5.25. When he arrived home, he had $22.50 left. Write and solve an equation to find the amount of Ricardo’s allowance a.

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Solving a linear equation we can conclude that Ricardo's allowance was $55.50

How to find Ricardo's allowance?

Let's define x as Ricardo's allowance.

We know that Ricardo spent half of his allowance, then at this point, he has x/2 left. Now he spends $5.25 in a snack, and after that, he has a total of $22.50 left.

Then we can solve the linear equation:

x/2 - $5.25 = $22.50

x/2 = $22.50 + $5.25 = $27.75

x = 2*( $27.75) = $55.50

Then we can conclude that Ricardo's allowance was $55.50

If you want to learn more about linear equations:

https://brainly.com/question/1884491

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