Not including tax, a total of 19 pens and markers cost $11.50. The pens cost $0.25 each, and the markers cost $0.75 each. Write the system of equations that could be used to solve for the number of pens, p, and the number of markers, m, bought.

__g +__ m= __

g + m = 19

are you sure

Apologies for the incorrect response earlier.

The correct system of equations is:

0.25p + 0.75m = 11.50
p + m = 19

The system of equations that could be used to solve for the number of pens, p, and the number of markers, m, bought is:

0.25p + 0.75m = 11.50
p + m = 19

Where p represents the number of pens and m represents the number of markers.

To write the system of equations, let's use the given information:

1. The total number of pens and markers is 19, so the equation for the quantity is:
p + m = 19

2. The total cost of the pens and markers is $11.50, so we can use the cost equation to find the relationship between the number of pens and markers:
0.25p + 0.75m = 11.50

Therefore, the system of equations is:
p + m = 19
0.25p + 0.75m = 11.50