The cost is: 15 times 2.22 = 33.3 because one key chain cost 2.22
Chat with our AI personalities
If 5 key chains cost 11.5 then one key chain costs 11.5 divided by 5, which is 2.3 so 15 key chains cost 2.3 x 15, which is 34.5Actually the cost of 5 chains is 11.25 not 11.50.so divide 11.25 by 5 to find the cost of one chain = 2.25now multiply 2.25 by 15 to find the cost of 15 chains = 33.75Another way to do it is to see that 15 chains is 3 times more than 5 so multiply the cost of 5 chains by 35x3 = 33.75
The selling price would be 17.25 if it cost 15 and the percent of markup is 15.
1 rose costs 18 ÷ 15 = 1.20
81.25 for 15 oranges
0.45 x .15 (15%) = 0.0675 round 0.0675 to 0.07 0.45 + 0.07 = 0.52