SOLUTION: Four burgers and six fries cost $10.50. Six burgers and four fries cost $11.50. How much will three burgers and three fries cost?

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: Four burgers and six fries cost $10.50. Six burgers and four fries cost $11.50. How much will three burgers and three fries cost?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 955171: Four burgers and six fries cost $10.50. Six burgers and four fries cost $11.50. How much will three burgers and three fries cost?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
B=cost of burger; F=cost of fries
4B+6F=$10.50
6B+4F=$11.50 Add together
10B+10F=$22.00
10(B+F)=$22.00 Divide each side by 10
B+F=$2.20 Each burger and fries costs $2.20, so multiply by 3
3(B+F)=$6.60
3B+3F=$6.60 ANSWER 3 burgers and 3 fries costs $6.60.