Answer:
x + 10 = 4x
Step-by-step explanation:
Let x = her age 10 years ago.
Her age now is x + 10.
x + 10 = 4x
Answer: A
Step-by-step explanation:
Answer:
6 sqrt(3) = y
Step-by-step explanation:
We can use the leg rule to find y
hyp leg
----- = -------
leg part
9+3 y
----- = -------
y 9
Using cross products
12*9 = y^2
108 = y^2
Taking the square root of each side
sqrt(108) = sqrt(y^2)
sqrt(36 *3) = y
6 sqrt(3) = y
The average rate of change is the slope.
The slope is equal 
, if we were to do that for each set of points, we get the slope is always 8.
Thus the average rate of change is 8.
Matthew charges $25 for each haircut, and earned $325
Divide 325 with 25
325/25 = 13
13 haircuts were given.
hope this helps
