SOLUTION: Ribbons costing $0.20 each are mixed with ribbons costing $0.15 each. The mixture costs $1.20. The number of $0.20 ribbons is 3/4 of the $0.15 ribbons. Find the number of each type

Question 25803: Ribbons costing $0.20 each are mixed with ribbons costing $0.15 each. The mixture costs $1.20. The number of $0.20 ribbons is 3/4 of the $0.15 ribbons. Find the number of each type of ribbon in the box.
Thank You!!
Answer by elima(1433) (Show Source): You can put this solution on YOUR website!
Let x=ribbons that cost .15
then x=ribbons that cost .20
so we have;
.15x+.20=1.20
.15x+.15x=1.20
.30x=1.20
x=4
So the ribbons that cost .15 is 4;
and the ribbons that cost .20= (4)=3
Hope you understand
=)

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