SOLUTION: Edward makes his own lolly bags to give away at a party. He mixes jelly fruit costing $9 per kilogram and chocolate buttons costing $12 per kilogram. How many kilograms if each lol

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Question 1101088: Edward makes his own lolly bags to give away at a party. He mixes jelly fruit costing $9 per kilogram and chocolate buttons costing $12 per kilogram. How many kilograms if each lolly does Edward mix if he produces 15 kg of lolly bags costing $11.20 per kilogram?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
The meaning for 1 lolly bag is confusing. Moving ahead anyhow,

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15 kg of lolly bags costing $11.20 per kilogram
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Accounting for kilograms of lolly bags?
j for Jelly Fruit
c for Chocolate buttons
j%2Bc=15

Accounting for the cost of the mixture
assuming 15 total kilograms at $11.20 per kilogram
9j%2B12c=11.2%2A15
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simplify
3j%2B4c=5%2A11.2

Solve this system: system%283j%2B4c=56%2Cj%2Bc=15%29

c=11 and j=4