SOLUTION: You and your neighbor go to Wendys for a Big Lunch. You buy 3 burgers and 2 orders of fries for $6.50. Your neighbor buys 2 burgers and 5 orders of fries for $8.00. How much does e
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-> SOLUTION: You and your neighbor go to Wendys for a Big Lunch. You buy 3 burgers and 2 orders of fries for $6.50. Your neighbor buys 2 burgers and 5 orders of fries for $8.00. How much does e
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Question 67635: You and your neighbor go to Wendys for a Big Lunch. You buy 3 burgers and 2 orders of fries for $6.50. Your neighbor buys 2 burgers and 5 orders of fries for $8.00. How much does each item cost? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! You buy 3 burgers and 2 orders of fries for $6.50. Your neighbor buys 2 burgers and 5 orders of fries for $8.00. How much does each item cost?
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1st: 3b+2f=650
2nd: 2b+5f=800
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Multiply 1st by 2 to get:
3rd: 6b+4f=1300
Multiply 2nd by 3 to get:
4th: 6b+15f=2400
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Subtract 3rd from 4th to get:
5th: 11f=1100
f=100
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Substitute into 1st to solve for b as follows:
3b+2(100)=650
3b=450
b=150
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Fries cost $1.00
Burgers cost $1.50
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Cheers
Stan H.
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