Problema Solution
a pharmacist found at the end of the day she had 5/4 as many prescriptions for antibiotics as tranquilizers. she had 63 altogether. how many of each?
Answer provided by our tutors
let
a = the number of prescriptions for antibiotics
t = the number of prescriptions for tranquilizers
a pharmacist found at the end of the day she had 5/4 as many prescriptions for antibiotics as tranquilizers
a = (5/4)t
she had 63 altogether
a + t = 63
by solving the system of equations
a = (5/4)t
a + t = 63
we find
a = 35 prescriptions for antibiotics
t = 28 prescriptions for tranquilizers
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