Problema Solution
Brian received a cash gift from his parents on his birthday. He spent half of what he got, plus another five dollars at the local store, half of what was left plus five dollars on an app purchase, and three-fourths of what was left plus a five dollar tip on a meal. How much money did Brian start with?
Answer provided by our tutors
Let x represent the money that Brian started with
(1/2)x + 5 + (1/2)(x - (1/2)x - 5) + 5 + (3/4)(x - ((1/2)x + 5 + (1/2)(x - (1/2)x - 5) + 5) + 5 = x
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x = $90
Brian started with $90.