Question 836482
m+n = 353
2.75m + 6.50n = 1762



We can write n in terms of m (you can use variables x,y if you want) by a little rearranging:


n = -m + 353
n = -(2.75/6.50)m + (1762/6.50)


So the first equation, when graphed in the mn-plane, has slope -1 and n-intercept (0,353). A graph of both equations can be found here:


http://www.wolframalpha.com/input/?i=m%2Bn+%3D+353+and+2.75m+%2B+6.50n+%3D+1762