SOLUTION: Cholesterol intake should be limited to 300mg or less each day. One serving of scrambled eggs from Mc Donald and double beef whopper from Burger king exceed this intake by 241mg. T

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Cholesterol intake should be limited to 300mg or less each day. One serving of scrambled eggs from Mc Donald and double beef whopper from Burger king exceed this intake by 241mg. T      Log On


   

Question 536286: Cholesterol intake should be limited to 300mg or less each day. One serving of scrambled eggs from Mc Donald and double beef whopper from Burger king exceed this intake by 241mg. Two serving of scrambled eggs and three double beef whoppers provide 1257mg of cholesterol. Determine the cholesterol each item.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let one serving of scrambled eggs = s
Let one double beef whopper = w
given:
+s+%2B+w+=+300+%2B+241+
(1) +s+%2B+w+=+541+
and
(2) +2s+%2B+3w+=+1257+
Multiply both sides of (1) by 2, then
subtract (1) from (2)
(2) +2s+%2B+3w+=+1257+
(1) +-2s+-+2w+=+-1082+
+w+=+175+
and, since
(1) +s+%2B+w+=+541+
(1) +s+%2B+175+=+541+
(1) +s+=+541+-+175+
(1) +s+=+366+
One serving of scrambled eggs has 366 mg cholesterol
One double beef whopper has 175 mg cholesterol