algebra
posted by Candy .
Solve the system by substitution:
4.5x2y=12.15
3.25xy=0.75

y = 3.25x  .75
4.5x  2y = 4.5x  2(3.25x.75) = 12.15
Solve for x, then y. To check, put both values into your first equation in your question above.
Respond to this Question
Similar Questions

algebra
i need help with these problems (either a solution or how to plug them into a graphing calculator): 1) Solve by substitution or elimination 4/x + 1/y + 2/z = 4 2/x + 3/y  1/z = 1 1/x + 1/y + 1/z = 4 2)Solve the system of equations … 
algebra 2
Nonlinear homework... Solve the system by elimination. 1)y=x^2+2 4xy=10 2) Solve the system using substitution. Y=3x^2+x2 Y=5x+3 
algebra 2
Nonlinear systems Solve the system by elimination. y=x^2+2 4xy=10 Solve the system using substitution. y=3x^2+x2 y=5x+3 
Algebra
I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. 3x+yz=4 6x2y+2z=8 … 
Algebra help needed please!!
I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. 3x+yz=4 6x2y+2z=8 … 
Algebra help!
1.) Solve the system by triangularizing the augmented matrix and using back substitution. xy+z=1 xy4z=7 4x+y+z=6 2.) Perform the indicated row operation, then write the new matrix. 4 4  4 9 6  5 2R1+ R2 > R2 3.) Solve … 
Math
Can someone explain how to solve this system using substitution? 
Algebra
Solve the system by substitution: 4.5x2y=12.15 3.25xy=0.75 
Algebra 1
Solve the system by substitution {4.5x2y=12.5 3:25xy=0.75} 
Algebra
I need help learning to solve substitution. I have a problem that says solve the system by substitution 4.5x2y=12.5 3.25xy=0.75