Aim #28:
Homework: Handout
x - 4y = -12
using a system of equations?
4) Amounts of a 35% acid solution and a 65% acid solution are to be mixed to
produce 24 gallons of a 45% acid solution. How many gallons of the 35% acid
solution and how many gallons of the 65% acid solution should be used?
5) A store sells Brazilian coffee for $10 per lb. and Columbian coffee for $14 per
lb. If they decide to make a 150-lb. blend of the two and sell it for $11 per lb.,
how much of each type of coffee should be used?
7) The manager at a community pool is looking over receipts. On a certain Monday,
the pool had 32 children and 17 adults, which brought in $83. That same Tuesday,
32 children and 47 adults came to the pool, which brought in $173. What are the
admission prices for children and adults?
8) The senior class at high school A rented and filled 1 van and 6 buses with 372
students. High school B rented and filled 4 vans and 12 buses with 780 students.
Each van and each bus carried the same number of students. How many students
can a van carry? How many students can a bus carry?