will be $5 every day payable each morning. Then he gave the boy his first $5 bill.
Billy (who was broke before that) immediately decided that tonight he will buy ice cream to his girlfriend and himself (2 x $1.25 = $2.50), and continue to do so every day, until he has $15 to take her to the movies (2 x $7.50) instead.
On what day will they go to the movies?
2007-09-07 10:20:24 · 7 answers · asked by Alexander 6 in Science & Mathematics ➔ Mathematics
On the fifth day...
After each day he has $2.50 remaining
So after 4 days he will have $10.
On the morning of the fifth day (Friday) he will receive $5 = $15 dollars total - enough for the movies!
2007-09-07 10:25:53 · answer #1 · answered by piscesgirl 3 · 1⤊ 0⤋
This is a very tricky question, the answer is on what day will Billy have $15. You might think it is Saturday, but it is not. It is 5 days.
Friday he can take her to the movies because he will have $15 dollars before he spends $2.50 for ice cream.
2007-09-07 10:27:17 · answer #2 · answered by 006 6 · 1⤊ 0⤋
In = $5, Out = $2.50
Daily savings = 5 - 2.50 = $2.50
1st = 2.50 (savings = $2.50)
2nd = 2.50 (savings = $5)
3rd = 2.50 (savings = $7.50)
4th = 2.50 (savings = $10)
5th = 5 (savings by morning = $15)
So he can take her out on the evening of 5th day.
2007-09-07 12:12:00 · answer #3 · answered by Kemmy 6 · 0⤊ 0⤋
well if he's spending $ 2.50 of his $5 he's only making $2.50 per day. Divide 15 by 2.5. That will give you the number of days is will take him to get $15.
2007-09-07 10:25:46 · answer #4 · answered by Gwenilynd 4 · 0⤊ 1⤋
Let n be the number of days Billy will spend $2.50 per day, so he have a daily savings of $2.50 until it reaches $15.
Equation : $2.50n = $15
Solution :
n = $15 / $2.50
n = 6 days
Answer : on the sixth day, which will fall on a Saturday
2007-09-07 10:32:02 · answer #5 · answered by edith p 3 · 0⤊ 1⤋
At the end of the 4th day he has $10. Next morning he has $15. So he steps out on the 5th day.
EDIT: Jeez, it must be rush hour. Four answers in 32 seconds!
2007-09-07 10:26:18 · answer #6 · answered by kirchwey 7 · 1⤊ 0⤋
Hey Alex do your own homework.
2007-09-07 10:26:05 · answer #7 · answered by Anonymous · 1⤊ 0⤋