Problema Solution
Mrs. Gonzalez bought centerpieces to put on each table at a graduation party. She spent $31.50. There are 8 tables each requiring either a candle or vase. Candles cost $3 and vases cost $4.25. How many of each type did she buy?
Answer provided by our tutors
x + y = 8
3x + 4.25y = 31.50
x = 8 - y
24 - 3y + 4.25y = 31.50
Solve the second equation separately
-3y + 4.25y = 31.50 - 24
1.25y = 7.5
y = 6
x = 8 - y = 8 - 6 = 2
so, she bought 6 vases and 2 candles