SOLUTION: Jacky sells ice creams at the football. If she gets 25 cents for each ice cream she sells, how many must she sell to have at least $20, after she has given her brother Aaron the $5

Algebra ->  Equations -> SOLUTION: Jacky sells ice creams at the football. If she gets 25 cents for each ice cream she sells, how many must she sell to have at least $20, after she has given her brother Aaron the $5      Log On


   

Question 1190355: Jacky sells ice creams at the football. If she gets 25 cents for each ice cream she sells, how many must she sell to have at least $20, after she has given her brother Aaron the $5.40 she owed him?
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


let x be the number she sells.

Her income in dollars is then .25x.

Her net gain is her income, minus the amount she repays to her brother: .25x-5.40.

You want her net gain to be at least $20.00:

.25x-5.40+%3E=+20.00

Solve using basic algebra.

Informally....

$5.40 divided by $0.25 is 21.6; so she needs to sell 22 ice creams to cover what she has to repay to her brother. Then she needs to sell another $20/$0.25=80 ice creams to make the $20. ANSWER: 102