Answer:
its bloked on my screen sorry
Step-by-step explanation:
wish i could help
Answer: Order if operations
Step-by-step explanation:
15-10n+12n
15+12n
Answer:
Fern saw 9 movies.
Step-by-step explanation:
$68-$14=54
54 divided by 6 =9
After 12 months andrew will have paid 516$ because there are 12 months in a year and if you multiply 516 times 12 that what you get. dough will have paid 464$ because again there are 12 months in a year and he started with 104$ so if you multiply 30$ time 12 you get 360 and if you add 104$ to that you get 464$
For this case, the first thing we must do is define variables:
p: plane speed
w: wind speed
With the wind in favor, the speed is:
![p + w = 1920/2 ](https://tex.z-dn.net/?f=p%20%2B%20w%20%3D%201920%2F2%0A)
With the wind against the speed is:
![p - w = 1920 / 3.2 ](https://tex.z-dn.net/?f=p%20-%20w%20%3D%201920%20%2F%203.2%0A)
Rewriting both equations, we have the following system of equations:
![p + w = 960 p - w = 600](https://tex.z-dn.net/?f=p%20%2B%20w%20%3D%20960%0A%0Ap%20-%20w%20%3D%20600)
Then, solving the system of equations (graphically for example), we have the solution is:
![p = 780 w = 180](https://tex.z-dn.net/?f=p%20%3D%20780%0A%0Aw%20%3D%20180)
Therefore, jet stream's speed:
Answer:
A) p + w = 960; p - w = 600; jet stream's speed = 180 km / h