Question

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?

Answer 1

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