Answer:
a. 7.2
b. 6
Step-by-step explanation:
Since the side lengths of similar polygons are proportional to each other, therefore:

Thus, let's find b using:

Cross multiply


Divide both sides by 15
b = 6
Let's find a using:

Cross multiply
9*12 = 15*a
108 = 15a
Divide both sides by 15
a = 7.2
Answer:
3
Step-by-step explanation:
1/3 of 9 is 3
you would figure this out by dividing the total amount of books by the denominator of the fraction.
9/3=3
Y= -4x + 6 (-10, 46), (-1.11, 10.44),
y= -5x -4. (-10, 46)
whereas (-10, 46) is the solution for both equations, it is the correct choice
Answer:
m=-7
Step-by-step explanation:
4+4+20m=-132
8+20m=-132
20m=-132-8
20m=-140
m=-7
The answer to your question is 8, because you replace z with 2