If A = Audrey's books
B = Brian's books
M = Miguel's books
From your information, A + B = 50
A + M = 110
M = 3B
or
A + B = 50
A + 3B = 110 Solving for A, we find that
B = 30 and A = 50-B = 50-30 = 20 = Audrey's Books!
Cris M.
asked • 08/04/19Math problem solving with equation.
Audrey and Brian have 50 books together. Audrey and Miguel have 110 books together. If Miguel has 3 times as many books as Brian, how many books does Audrey have?
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