chris is planning a party for 15 of his friends where he plans to serve chips and salsa for his guest. each 16-ounce jar of salsa is on sale for 3.00 and he plans to purchase 3 jars. if each guest eats 3 ounces of salsa, how much will the salsa cost per guest?
Each ounce costs 3.00 / 16 = 18.75 cents
So, each person eats 3 ounces and we have.....3(18.75) = 56.25 cents
If Chris intends to buy 3 jars of salsa and each jar costs $3, then the total cost will be 3 X 3=$9
Since each jar has 16 ounces, then, 3 X 16=48 ounces of salsa altogether.
The cost per ounce is 9/48=.1875 cents per ounce.
Since each guest will eat 3 ounces, then the cost per guest will be 3 X .1875=.5625 cents per guest.
Total cost for the party of 15 will be =15 X .5625=$8.44 (rounded)