Posted by amie on .
A pharmacist found at the end of the day she had seven fourths
7/4 as many prescriptions for antibiotics as tranquilizers. She had 44 prescriptions altogether. How many did she have for tranquilizers?

elementary algebra 
PsyDAG,
44/(7+4) = 44/11 = 4
7 * 4 = 28
4 * 4 = 16
16 + 28 = 44