Answer:
X= 7
Z= 117
Step-by-step explanation:
Z would be 117 because on the bottom half of the equation it has to be equal to 180. It gave you 63 already and so I just took the 180 and subtracted the 63 to get 117.
If you would like to solve blank of 100 equals 16%, you can calculate this using the following steps:
x of 100 equals 16%
x * 100 = 16%
x * 100 = 16/100 /100
x = 16/100 / 100
x = 0.0016
The correct result would be: 0.0016 of 100 equals 16%.
Let's write some equations.
Mingwei's distance from Town A after
![x](https://tex.z-dn.net/?f=x)
hours from 8:00 is
![45x](https://tex.z-dn.net/?f=45x)
.
Ali's distance from Town B after
![x](https://tex.z-dn.net/?f=x)
hours is
![30x-20](https://tex.z-dn.net/?f=30x-20)
, since he doesn't start walking for 40 minutes.
When Mingwei's distance is twice Ali's, they've met up (since their distance from Town A is twice their distance from Town B).
So, this gives
![45x=60x-40](https://tex.z-dn.net/?f=45x%3D60x-40)
, so
![15x=40](https://tex.z-dn.net/?f=15x%3D40)
, so
![x=\frac{40}{15} = \frac{8}{3}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B40%7D%7B15%7D%20%3D%20%5Cfrac%7B8%7D%7B3%7D)
, so the time is 10:40.
After
![\frac83](https://tex.z-dn.net/?f=%5Cfrac83)
hours, Mingwei has traveled
![45 * 8 / 3 = 120](https://tex.z-dn.net/?f=45%20%2A%208%20%2F%203%20%3D%20120)
kilometers while Ali has traveled sixty, so the distance between the towns is
![180](https://tex.z-dn.net/?f=180)
kilometers.
Answer:
x=3
Step-by-step explanation: