Jack collects all his neighbors' recycling and sorts out the cans and bottles to return for the deposit. He gets 10 cents per bottle and 5 cents per can. If he recycled 80 bottles and made $15, how many cans did he recycle?
First find the total amount Jack earned from the bottles: $0.10/bottle * 80 bottles = $<T>multiply(0.1, 80)=8.0
Then subtract that amount from his total earnings to find the amount he earned from cans: $15.00 - $8.00 = $<T>subtract(15, 8)=7
Then divide his total earnings from cans by his earnings per can to find the number of cans he recycled: $7.00 / $0.05/can = <T>divide(7, 0.05)=140.0 cans
