This problem describes two points in a route of 4 hours. He went through 68 miles after the first two hours, and 132 miles after 4 hours of driving. We need to calculate the average rate of change.

The average rate of change is the division between the total distance and the time it took to travel that distance, so we have:

$r=\frac{132}{4}=33\text{ miles per hour}$

The average rate of change is equal to 33 miles per hour.

7 0

2 years ago

What is 8q+12=4(3+3q)

Elena-2011 [213]

Answer:

q = 0

Step-by-step explanation:

8q + 12 = 4( 3 + 3q )

Distributive property

8q + 12 = 4 ( 3 + 3q )

8q + 12 = 12 + 12q

Inverse operations

8q + 12 = 12 + 12q

-8q -8q

12 = 12 + 4q

-12 -12

0 = q

q = 0

4 0

3 years ago

Read 2 more answers

Suppose you did a survey of male shoes size and the mean of that survey was size 10 with a standard deviation of 1.5. What is th

astra-53 [7]

Given:
Population mean, μ = 10
Population standard deviation, σ = 1.5
Random variable, x = 11.

By definition, the z-score is
z = (x - μ)/σ
= (11 - 10)/1.5
= 0.667

Answer: 0.667

4 0

3 years ago