C= total $ cost
n= number of pizzas purchased
x= $ cost per pizza
C= x * n
C= xn
If you know the cost per pizza and the number of pizzas purchased, plug those numbers in the equation above to find the total cost.
EXAMPLE: If each pizza cost $10 and 5 were purchased, the equation would be: C= ($10)(5)= $50 total
ANSWER: C= xn
Hope this helps! :)
Hey there!
Let's solve this problem step by step!
Remove the parenthesis between the first sum.
Work out the parenthesis that are left. Remember that multiplying a negative by a negative makes you end up with a positive outcome.
And finally collect the terms. We can only add the . We then find the following solution
~Hope this helps you!
We can see that the lines intersect at: (-5,-3)
Step-by-step explanation:
Given system of equations is:
Lets convert the second equation in the same form as the first equation
Adding 3y on both sides
Dividing both sides by 3
The graph of equation can be plotted using manual graphing or any online graphing calculator
We will use the Desmos online graphing calculator to graph the equations (Picture attached)
We can see that the lines intersect at: (-5,-3)
Keywords: Graphing, linear equations
Learn more about linear equations at:
#LearnwithBrainly
Answer:
9
Step-by-step explanation:
for this problem, plug in 2 for every x
2^2 + 5(2) -5
4 + 10 -5= 9