SOLUTION: 3) Peanut butter costs sixteen cents an ounce. Jelly costs two hundred twenty-four cents per pound. Hailey wants to make 1 1/2 pounds of peanut butter and jelly. If she wants the e

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: 3) Peanut butter costs sixteen cents an ounce. Jelly costs two hundred twenty-four cents per pound. Hailey wants to make 1 1/2 pounds of peanut butter and jelly. If she wants the e      Log On


   

Question 766320: 3) Peanut butter costs sixteen cents an ounce. Jelly costs two hundred twenty-four cents per pound. Hailey wants to make 1 1/2 pounds of peanut butter and jelly. If she wants the entire mix to cost $3.52, how many pounds of jelly should she use?

8) Madison works at the supermarket. She put together a fruit cup of watermelon and cantaloupes, which weigh 8/15 pounds and cost a total of $0.34. If the fruit cup has one-third of a pound of watermelon, which costs fifty cents per pound, how much do cantaloupes cost per pound?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Fruit Cup watermelon & canteloupe:

8/15 pound fruit cup, cost $0.34
Watermelon is price $.50 per pound.

Given also 1%2F3=5%2F15 pound is watermelon, then
pounds canteloupe is 8%2F15-5%2F15=3%2F15 pounds canteloupe.

Find the price of the canteloupe. Call it c dollars per pound.

Account for cost: highlight%28%281%2F3%29%280.5%29%2B%281%2F5%29%28c%29=0.34%29,note also, the poundage of each melon is used here in reduced form.
Just find c.

%285%2F15%29%280.5%29%2B%283%2F15%29c=0.34
5%280.5%29%2B3c=15%280.34%29
2.5%2B3c=15%280.34%29
3c=15%280.34%29-2.5=5.10-2.5
3c=2.6
c=2.6%2F3
highlight%28c=0.87%29 dollars per pound.