Answer:
24 km/hr
Step-by-step explanation:
Speed is the rate of distance traveled in a defined time. Average speed is to take calculate the total distance travel at different speeds dividing by the total time taken.
Total Time = 4 hours
Total Distance = 68 km + 3 km + 25 km = 96 km
Average Speed = Total Distance / Total Time taken= 96 km / 4 hours
Average Speed = 24 km per hour
Answer:
![\begin{gathered} a)\text{ Amplitude = 4} \\ b)\text{ Period = 5} \\ c)\text{ Midline = 2} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20a%29%5Ctext%7B%20Amplitude%20%3D%204%7D%20%5C%5C%20b%29%5Ctext%7B%20Period%20%3D%205%7D%20%5C%5C%20c%29%5Ctext%7B%20Midline%20%3D%202%7D%20%5Cend%7Bgathered%7D)
Explanation:
Here, we want to get the properties listed for the plot shown
a) Amplitude:
![Amplitude\text{ = }\frac{max-min}{2}\text{ = }\frac{6-(-2)}{2}\text{ = }\frac{6+2}{2}\text{ = 4}](https://tex.z-dn.net/?f=Amplitude%5Ctext%7B%20%3D%20%7D%5Cfrac%7Bmax-min%7D%7B2%7D%5Ctext%7B%20%3D%20%7D%5Cfrac%7B6-%28-2%29%7D%7B2%7D%5Ctext%7B%20%3D%20%7D%5Cfrac%7B6%2B2%7D%7B2%7D%5Ctext%7B%20%3D%204%7D)
b) Period
The period is simply the distance from max to max or min to min
We have that as:
![1\text{ + 4 = 5}](https://tex.z-dn.net/?f=1%5Ctext%7B%20%2B%204%20%3D%205%7D)
c) Midline:
A. The amount of money she must earn in the summer must be
x ≥ 2450
B. The inequality that describes the situation is
30x ≤ 2000
C. Solving the inequality
x ≤ 66.67 ~ 66 weeks
D. The answer is Part C means that she can only make use of the $2000 money for food for 66 weeks before it's not enough.
Answer:
1/6
Step-by-step explanation:
you better hope im right lol....
$2.52 x 8 (8 per half gallons is 4 gallons) = $20.16