Answer:
Step-by-step explanation:
a. 3-4x=-7-4x
3=-7. no solution
b. 15 - 2x = -7x
15 = -5x
x=-3. one solution
c. 7y-21=6y-21
y=0
1. -3x+4=-3x+7
4=7
2. 10+2x = 5x+2
8=3x
x=3/8
3. x+5=x+5
A rhombus would answer your question. Hope this helped sorry if im wrong.
Answer:
$880
Step-by-step explanation:
This is called a system of equations!! Here's how to do it:
1. Make Equations
In this case, the equations would be
- p+c=64 (this is saying that pepperoni pizzas plus cheese pizzas equal 64, which we got from the question.)
- 1/3c=p (this is telling us that he sells 1 pepperonis for 1/3 cheese pizza)
2. Solve the system of equations
For this problem, we will substitute 1/3c for p. The problem becomes
Then you divide by 4/3 to get p by itself:
Now substitute 48 for p in the first equation.
3. Find the money amounts
Now that you know that pepperoni pizzas equal 48, and cheese equals 16, this is easy.
- Multiply 16*10 to get the cheese cost. ($160)
- Multiply 15*48 to get the pepperoni cost ($720)
- Then add those to get the total!
The correct answer is b and c
263
hopefully i could help
