Three runners are jogging from North Augusta to Beech Island. Runner 1 runs 14 miles in 3 hours while .Runner 2 runs 16 miles in 4 hours. Runner 3 runs 15 miles in 6 hours. What is the average speed of each runner?

Runner 1,2 and 3 ran at a average speed of 4.67 , 4 and 2.5 miles per hour respectively

Step-by-step explanation:

We can all agree that speed equals distance divided by time and we are asked to find out the average speed of this 3 people.

---Average speed of runner 1

Speed = distance / time

Since he ran 14 miles within 3 hours

S = 14/3

The average speed was 4.67 miles pet hour

---For runner 2,

Speed = distance / time

Since he ran 16 miles in 4 hours,

Average speed = 16/4

= 4 miles per hour

---For runner 3,

Speed = distance / time

Since he ran 15 miles under 6 hours,

Average speed = 15/6

= 2.5 miles per hour

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3