First, assign a variable to each unknown value.
Let:
x = cost of the pepperoni pizza
y = cost of the plain pizza
Next, set up equations based on the word problem. We then have the following equations:
(1) 3x + 2y = 58.50
(2) 2x + 4y = 67
Equation (1) comes from the statement: "Jack paid 58.50 for 3 pepperonies and 2 plain pizzas". Equation (2), on the other hand, translates the statement: "Jill paid 67 for 2 pepperonies and 4 plain pizzas".
To solve for two unknown variables given two independent equations, eliminate one variable first. That is, multiply equation (1) to -2.
-2[3x + 2y = 58.50]
-6x -4y = -117
Then add this to equation (2):
-6x -4y = -117
2x + 4y = 67
-------------------
-4x = -50
x = -50/-4 = 12.5
To solve for y, we use equation (2) and substitute the value of x which has been solved already.
2(12.5) + 4y = 67
y = 10.5
To summarize, they paid $12.50 for the pepperoni pizza while they paid $10.50 for the plain pizza.
Answer:
it would help if there was a graph
Step-by-step explanation:
need graph
Number 1 76
number 2 760,000
number 3 760
Answer:
23, 24, 25
Step-by-step explanation:
13800 = 2*2*2*3*5*5*23
The volume of a recatangle is a*b*c
If thy are all integers and the prime factor has 23 in it that helps a lot.
23*23*23 = 12167 So it has to be bigger
23*24*25= 13800
Answer:
This is beyond me I just need my points
Step-by-step explanation:
Goodluck broskie