Problema Solution

Torrance is buying presents for members of his family. He wants to spend $10 less on his brother than he spends on his sister, and six dollars more than twice the amount he spends on his sister on his mother. If Torrance has $100 to spend, how much does he intend to spend on his brother?

Answer provided by our tutors

let


x = the money Torrance intends to spend on his brother


x + 10 = the money Torrance intends to spend on his sister


6 + 2(x + 10) = the money Torrance intends to spend on his mother


Torrance has $100 to spend:


x + (x + 10) + (2 + 2(x + 10)) = 100


by solving we find:


x = $17


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Torrance intends to sped $17 on his brother.