Answer:
3-2 notebooks= 11$-8$=3 $
so 2 notebooks= 2*3=6 $
so a pack of pens is 8$-6$=2$
Step-by-step explanation:
The cost of a pack of pens is $2 and it can be determined by using a system of equations.
Given that,
Daniel brought 2 notebooks and a pack of pens for $8.
Jose bought 3 notebooks and a pack of pens for $11.
We have to determine,
What is the cost of a pack of pens?
According to the question,
Let, the cost of notebook be x,
And the cost of a pack of pens is y.
Daniel brought 2 notebooks and a pack of pens for $8.
2x + y = 8
Jose bought 3 notebooks and a pack of pens for $11.
3x + y = 11
On subtracting both the equation
2x + y - (3x + y ) = 8-11
2x + y -3x -y = -3
-x = -3
x = 3
Substitute the value of x in the equation 1,
2x + y = 8
2(3) + y = 8
6 + y = 8
y = 8-6
y = 2
Hence, The cost of the notebook is $3 and the cost of a pack of pens is $2.
To know more about System of Equation click the link given below.
https://brainly.com/question/16481292
