Answer:
450 miles per hour
Step-by-step explanation:
Kelly flies at a distance of 2,100 miles
The time taken for the trip is 4 2/3 hours
Therefore the rate of speed can be calculated as follows
= 2,100 ÷ 4 2/3
= 2,100 ÷ 14/3
= 2100 × 3/14
= 150 × 3
= 450 miles per hour
To find the height, you would do the area divided by the base, or in this case,187.5 / 25 which equals 7.5 inches. Hope this helped!
Answer:
2500 grams
Step-by-step explanation:
1kg=1000g
2.5kg=1000×2.5
=2500
Answer:
-33 or 33
Step-by-step explanation:
The seventh term of an AP is written as:
![a + 6d](https://tex.z-dn.net/?f=a%20%2B%206d)
The eleventh term of an AP is written as:
![a + 10d](https://tex.z-dn.net/?f=a%20%2B%2010d)
If the 7th term is 11 times the 11th term, then;
![a + 6d = 11(a + 10d)](https://tex.z-dn.net/?f=a%20%2B%206d%20%3D%2011%28a%20%2B%2010d%29)
Expand to get:
![a + 6d = 11a + 110d](https://tex.z-dn.net/?f=a%20%2B%206d%20%3D%2011a%20%2B%20110d)
![11a - a = 6d - 110d](https://tex.z-dn.net/?f=11a%20-%20a%20%3D%206d%20-%20110d)
![10a = - 104d](https://tex.z-dn.net/?f=10a%20%3D%20%20-%20104d)
![\frac{a}{d} = - \frac{104}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%7D%7Bd%7D%20%20%3D%20-%20%20%20%5Cfrac%7B104%7D%7B10%7D%20)
![\frac{a}{d} = - \frac{52}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%7D%7Bd%7D%20%20%3D%20-%20%20%20%5Cfrac%7B52%7D%7B5%7D%20)
We must have a=-52 and d=5
Or
a=52 and d=-5
For the first case, the 18th term is :
![- 52 + 5 \times 17 = 33](https://tex.z-dn.net/?f=%20-%2052%20%2B%205%20%5Ctimes%2017%20%3D%2033)
For the second case,
![52 - 5 \times17 = - 33](https://tex.z-dn.net/?f=52%20-%205%20%5Ctimes17%20%3D%20%20-%2033)