SOLUTION: Kara is selling cups of lemonade at a lemonade stand to save up for a new set of Apple Airpods that are on sale for $82.50. She charges $5 each cup of lemonade. If her suppli

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Kara is selling cups of lemonade at a lemonade stand to save up for a new set of Apple Airpods that are on sale for $82.50. She charges $5 each cup of lemonade. If her suppli      Log On


   

Question 1205916: Kara is selling cups of lemonade at a lemonade stand to save up for a new set of Apple Airpods that are on sale for $82.50. She charges $5 each cup of lemonade. If her supplies cost $7.50, how many cups must she sell to meet her goal?
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52798) About Me  (Show Source):
You can put this solution on YOUR website!
.
Kara is selling cups of lemonade at a lemonade stand to save up for a new set of Apple Airpods
that are on sale for $82.50. She charges $5 each cup of lemonade.
If her supplies cost $7.50, how many cups must she sell to meet her goal?
~~~~~~~~~~~~~~~~~~~~~ 

    how many cups must she sell = %2882.50%2B7.50%29%2F5 = 90%2F5 = 18.    ANSWER

Solved.   One line solution.



Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
COST, 7.50 for the lemonade stand and supplies

SALES REVENUE for c cups, 5c

Set of Airpods, 82.5dollars

She wants the profits to be sale price of the airpods, $82.50.
5c-7.5=82.5
5c=82.5%2B7.5
c=%2882.5%2B7.5%29%2F5=highlight%2818%29