Linear System

• Oct 14th 2010, 03:57 PM
Jubbly
Linear System
Hey guys I've been trying to figure out this problem for awhile, but I can't seem to get an answer.

A regular ticket costs 2.25 while a special ticket costs 3.50. Just that night there were 165 tickets sold and a profit of 448.75 made. How many of each tickets were sold?

I chose the regular ticket as my 'x' and special as my 'y' and got this equation:
2.25x+3.5y=448.75.
Then I tried solving for y, but I don't think I'm doing something right as I'm getting decimals. Would I have to use the 165 tickets sold somewhere in the equation?

• Oct 14th 2010, 04:56 PM
skeeter
Quote:

Originally Posted by Jubbly
Hey guys I've been trying to figure out this problem for awhile, but I can't seem to get an answer.

A regular ticket costs 2.25 while a special ticket costs 3.50. Just that night there were 165 tickets sold and a profit of 448.75 made. How many of each tickets were sold?

I chose the regular ticket as my 'x' and special as my 'y' and got this equation:
2.25x+3.5y=448.75.
Then I tried solving for y, but I don't think I'm doing something right as I'm getting decimals. Would I have to use the 165 tickets sold somewhere in the equation?