Answer:
I
Step-by-step explanation:
3x-5+7x+5+90=180
x=9
Answer:
x=1/9
Step-by-step explanation:
Let the colored pencil amount be p.
Then this is the equation:
12p+p=78
Simplifying, we can see that
13p=78
Divide both sides by 13 to get
p=6
Since there are 12 times as many markers as colored pencils, there are 72 markers.
8b-6=2
"The difference of" refers to subtraction
Yes, it is Proportional.
Y=0.25x
For example:
If x=1, y=0.25
If x=2, y=0.5
So, it is proportional.
