write a system of equations to model the situation above. if this system of equations is graphed on a coordinate plane, what would be the coordinates of the po

Question

Bill and ashley went to the craft shoppe to purchase supplies for a science project. BIll purchased 3 markers and 8 folders. ashley purchased 5 markers and 3 folders. bills ordered totaled $9.25 before tax, and ashleys order totaled $8.70 before tax.

Math

Answer 1

3m + 8f = 9.25

5m + 3f = 8.70

 

To eliminate m, let's multiply the top by -5 and the bottom by 3.

 

-15m - 40f = -46.25

 15m + 9f =  26.10

 

-31f = -20.15

     f = .65

 

5m + 3(.65) = 8.70

5m + 1.95 = 8.70

5m = 6.75

m = 1.35

 

Answer 2

F = cost of folders

M = cost of markers

 

For Bill

3M + 8F = 9.25

 

For Ashley

5M + 3F = 8.70

 

 

The system of equations is:

3M + 8F = 9.25

5M + 3F = 8.70