Answer:
3. 9x
4. D. -5v + 4
Step-by-step explanation:
3. (-3+12)v 
= 9v
4. Combine like terms:
(-2v - 3v) + (8 - 4)
= -5v + 4
 
        
                    
             
        
        
        
Answer:
y=2x
Step-by-step explanation:
Every y value is double the x value on top.
y=6:
6 = 3 × ?
? = 2
y=10:
10 = 5 × ?
? = 2
And so on....
So the equation that represents this data is :
y=2x
 
        
             
        
        
        
Answer:
95 city and 175 highway miles.
Step-by-step explanation:
The driver gets 20 mpg in city, and 28 mpg on the highway.
An equation that could be written is
20x+28y=270
This equation accounts for the distance traveled.
x+y=11
This equotion accounts for how many gallons were driven.
Multiply the bottom equation by 20, so you can solve the set of equations.
20x+28y=270
20x+20y=220
subtract them
8y=50
y=6.25
now plug this back into x+y=11
x+6.25=11
x=4.75
Now 4.75×20=95 city miles and 6.25×28=175 highway miles.
 
        
             
        
        
        
The answer is 30 because u need to add 60+90=150 and then subtract 180-150 which gives you 30
        
                    
             
        
        
        
Answer:
3(2+x)=0
Step-by-step explanation:
<u>Here are some vocab words:</u>
Product: Multiplication
Sum: Addition
"A number": x
3(2+x)=0