Y= $0.59(x)
y= $0.59(12)
y=?
y is the total
x is the amount of pen
so you multiply the cost of each pen with the amount of pens
$0.59 times 12
So we have the system of equations:

equation (1)

equation (2)
To use substitution, we are going to solve for one variable in one of our equations, and then we are going to replace that value in the other equation:
Solving for

in equation (2):



equation (3)
Replacing equation (3) in equation (1):






equation (4)
Replacing equation (4) in equation (3):



We can conclude that the solution of our system of equations is <span>
(7/5, 21/10)</span>
Hello,
We can not divide by 0.
==> x+4.5≠0
==>x≠-4.5
dom f=R\{4.5}
Answer:
She can make 10 pizzas.
Step-by-step explanation:
8 1/3=25/3
(25/3)/(5/6)=(25/3)(6/5)=150/15=10