SOLUTION: Can someone help me solve this?
Type of Problem: Applications of Linear Systems
Solve the problem by using a system of equations.
Amy can buy 3 sandwiches and 4 iced teas for
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-> SOLUTION: Can someone help me solve this?
Type of Problem: Applications of Linear Systems
Solve the problem by using a system of equations.
Amy can buy 3 sandwiches and 4 iced teas for
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Question 791153: Can someone help me solve this?
Type of Problem: Applications of Linear Systems
Solve the problem by using a system of equations.
Amy can buy 3 sandwiches and 4 iced teas for $22.25. She can buy 1 sandwich and 3 iced teas for $9.50. Find the cost for 1 sandwich and 1 iced tea. Answer by rothauserc(4718) (Show Source):
You can put this solution on YOUR website! 3x + 4y = 22.25
x + 3y = 9.50
solve second equation for x
x = 9.50 -3y
substitute in equation 1
3*(9.50-3y) +4y = 22.25
28.50 -9y +4y = 22.25
-5y = -6.25
y = 1.25
x = 9.50 -3*(1.25) = 5.75
therefore a sandwich costs $5.75 and iced tea costs $1.25
