Answer:
4 pitchers
Step-by-step explanation:
we know that
The volume of a cylinder is equal to

step 1
Find the volume of the cylinder with height 9 inches and radius r
substitute the given values


step 2
Find the volume of the cylinder with height 9 inches and radius 2r
substitute the given values


step 3
we know that
The volume of the cylinder 1 can fill a certain pitcher,
so
The volume of the pitcher is the same that the volume of cylinder 1
therefore
the number of pitchers that can be filled by the second cylinder is equal to divide the volume of the second cylinder by the volume of the first cylinder

Answer:
8+7=21
Step-by-step explanation:
Answer:
I would assume its the third one because it makes a lot more sense than the other ones
Step-by-step explanation:
We can use substitution.
We can substitute 2x + 3 for 'y' in the 2nd equation.
y = 3x + 5
2x + 3 = 3x + 5
Subtract 3 to both sides:
2x = 3x + 2
Subtract 3x to both sides:
-x = 2
Multiply -1 to both sides:
x = -2
Now we can plug this into any of the two equations to get our y-value:
y = 2x + 3
y = 2(-2) + 3
y = -4 + 3
y = -1
So our solution is (-2, -1)