SOLUTION: one bar of candy a and two bars of candy b have 773 calories. two bars of candy a and one bar of candy b have 784 calories. find the caloric content of each candy bar

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: one bar of candy a and two bars of candy b have 773 calories. two bars of candy a and one bar of candy b have 784 calories. find the caloric content of each candy bar      Log On


   

Question 819990: one bar of candy a and two bars of candy b have 773 calories. two bars of candy a and one bar of candy b have 784 calories. find the caloric content of each candy bar
Found 2 solutions by TimothyLamb, ewatrrr:
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
a + 2b = 773
2a + b = 784
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solve the above system of linear equations for a and b:
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answer:
a = 265 cal
b = 254 cal
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Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 a + 2b = 773cal

 2a + b = 784cal



 -2a -4b = - 1546

 2a + b = 784

    -3b = -762

     highlight%28+b+=+254cal%29   and highlight%28a+=++265cal%29  a+=+2%2A254-773

CHECKING our answer***

 2a + b = 530cal + 254cal = 784cal