Answer: 9 Pages
Step-by-step explanation:
Count the number of pages given:
7,8,20,22,23,24,37,42,43
9 Numbers = 9 pages
The answers is -70560 meters
because. . .
d = 1/2 a * t^2
d = 1/2(-9.8) * 120^2
d = -70560 meters
Answer:
Her usual rate is 0.8333 miles per hour.
Step-by-step explanation:
The velocity formula is given by:
![v = \frac{d}{t}](https://tex.z-dn.net/?f=v%20%3D%20%5Cfrac%7Bd%7D%7Bt%7D)
In which d is the distance and t is the time.
She completed the first half of the walk 1 mi/h faster than usual
Her usual rate is v. 1mph faster is v + 1.
The second half of the walk 2 mi/h slower than the first half.
The first half is v + 1.
2mph slower is v + 1 - 2 = v - 1. Then
Total rate:
7.2 hours, and 6 miles. So
One half is v+1 and the other is v - 1. This is why each is multiplied by 0.5.
![0.5(v + 1) + 0.5(v - 1) = \frac{6}{7.2}](https://tex.z-dn.net/?f=0.5%28v%20%2B%201%29%20%2B%200.5%28v%20-%201%29%20%3D%20%5Cfrac%7B6%7D%7B7.2%7D)
![0.5v + 0.5 + 0.5v - 0.5 = 0.8333](https://tex.z-dn.net/?f=0.5v%20%2B%200.5%20%2B%200.5v%20-%200.5%20%3D%200.8333)
![v = 0.8333](https://tex.z-dn.net/?f=v%20%3D%200.8333)
Her usual rate is 0.8333 miles per hour.
2 = z - 14
Add 14 to both sides = {14 +} 2 = z - 14 {+ 14}
z = 16