Hans paid $1.50 each for programs to the game. He sold all but 20 of them for $3 each and made a profit of $15. How many programs did he buy?
(Use only one variable, x)
2006-11-13 11:22:28 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Hans spent 1.5x in dollars, where x is the number of programs bought.
Hans sold x - 20 programs, for a price of $3.00 each, which is a total of 3(x - 20) in dollars.
The profit of $15 is the difference between what he spent and what he sold, or 3(x - 20) - 1.5x.
Setting all this up, 3(x - 20) - 1.5x = 15
Solving for x, the number of programs he bought:
3x - 60 -1.5x = 15
1.5x = 75
x = 50.
You can check your work: 50 programs cost Hans $75
Hans sold 30 for $3 each or $90. $15 more.
2006-11-13 11:33:36 · answer #1 · answered by Action 4 · 0⤊ 0⤋
Let no. of programs be x
Then C.P=1.5x
No. sold=x-20
S.P=(x-20)*3
Profit=S.P-C.P
15=(x-20)*3-1.5x
solve this
2006-11-13 19:27:51 · answer #2 · answered by Dupinder jeet kaur k 2 · 0⤊ 0⤋
uhhhhhhhhh? whats the other poeple said
2006-11-13 19:30:23 · answer #3 · answered by Anonymous · 0⤊ 0⤋
he had bought 60 programs and wat a scammer lol but good idea i give him props
2006-11-13 19:27:15 · answer #4 · answered by motormouth 2 · 0⤊ 0⤋