11. 4x-3=14
add 3 to both sides
4x=17
17 divided by 4 = 4.25
x=4.25
if you want to check if thats correct you put
4(4.25)-3=14
4 times 4.25 = 17
17-3 = 14
For this case we have that by definition the time is given by:
![t=\frac{d}{v}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7Bd%7D%7Bv%7D)
Where the variable "d" represents the distance and "v" represents the speed.
So, first we need to know the total distance:
![d=(v)(t)](https://tex.z-dn.net/?f=d%3D%28v%29%28t%29)
![d=(60)(8)](https://tex.z-dn.net/?f=d%3D%2860%29%288%29)
![d=480 mi](https://tex.z-dn.net/?f=d%3D480%20mi)
Then, the time for 75mph is given by:
![t=\frac{480}{75}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B480%7D%7B75%7D)
![t=6,4](https://tex.z-dn.net/?f=t%3D6%2C4)
Answer:
6,4 hours
Answer:
![{2}^{7}](https://tex.z-dn.net/?f=%20%7B2%7D%5E%7B7%7D%20)
Step-by-step explanation:
![{2}^{7} = 128](https://tex.z-dn.net/?f=%20%7B2%7D%5E%7B7%7D%20%20%3D%20128)
![{7}^{2} = 49](https://tex.z-dn.net/?f=%20%7B7%7D%5E%7B2%7D%20%20%3D%2049)
So,
![128 > 49 \\ {2}^{7} \: \: \: \: > {7}^{2}](https://tex.z-dn.net/?f=128%20%3E%2049%20%5C%5C%20%20%7B2%7D%5E%7B7%7D%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%20%20%3E%20%20%7B7%7D%5E%7B2%7D%20)
Therefore 2^7 is greater
Answer:
obviously it's 3. from the answer of 3 is to 5