Answer:
Pens cost $2/each
Step-by-step explanation:
We can produce an equation from this question, it is as follows:
[tex]4p + 7m = 13.25[/tex]
P = The cost of pens
M = The cost of mechanical pencils
In the question it is stated that each mechanical pencil is 75 cents. We can plug that into the equation like this:
[tex]4p + 7(.75) = 13.25[/tex]
Now, we just solve the equation:
[tex]4p + 5.25 = 13.25\\4p = 8\\p = 2[/tex]
Therefore, each pen costs $2.
Let's check this answer by plugging everything into the equation:
[tex]4(2) + 7(.75) = 13.25\\8 + 5.25 = 13.25 \\13.25 = 13.25[/tex]
I hope this helps!
If you have any questions feel free to ask!
- Kay :)
