Question

With the $5,000 he has to spend, Jim buys 5,000 carnations at $0.30 each, 4,000 tulips at $0.60 each, and 300 irises at $0.25 each. Write an inequality which describes how many roses, r, Jimcan buy if roses cost $0.80 each.

Answer 1

5000(.30) + 4000(.60) + 300(.25) + r(.80) <= 5000
1500 + 2400 + 75 + .80r <= 5000
3975 + .80r <= 5000
.80r <= 5000 - 3975
.80r <= 1025
r <= 1025/.80
r <= 1281.25