2 McDonald's Quarter Pounders and 3 burger king whoppers with cheese contain 250 milligrams of cholesterol. 3 quarter pounders and one whooper with cheese contain 353 milligrams of cholesterol . What is the cholesterol for each item?

Question

campbell_st · Answer

Q = Quarter pounder  W = Whopper

set up 2 equations

2Q + 3W = 250   (1)
3Q + W = 353     (2)

rewrite equation 2 

W = 353 - 3Q

substitute into equation (1)

2Q + 3(353 - 3Q) = 250

2Q - 9Q + 1059 = 250

-7Q =  - 809

$$Q  = \frac{809}{7}$$

when you have Q substitute into equation 1 to find W

and the answer is a bit strange.... with a very high Q and small W