Question

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.

1. 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