The association between flow rate and amount of eroded soil is positive because as the flow rate increases the amount of eroded soil also increases.
Answer:
y=20x+150
Step-by-step explanation:
Sandy has 150 dollars ALREADY in her account, so each time she earns the money it is building upon. 20x (x because we don't know for how many months.)
Hope this helps ;)
Answer:
Step-by-step explanation:
=> 20 + 12k - 7k - 8
=> 20 - 8 + 12k - 7k
=> 12 + 5k
=> 12 + 5k
<u>Hence correct answer is 12</u><u> </u><u>+</u><u> </u><u>5</u><u>k</u><u>.</u>
Answer:
He bought 5 tickets.
Step-by-step explanation:
The cost of buying t tickets is given by the following function:
![c(t) = 24.50t + 9.5](https://tex.z-dn.net/?f=c%28t%29%20%3D%2024.50t%20%2B%209.5)
If the student spent a total of $132 on tickets, how many tickets did he buy?
This is t when
. So
![c(t) = 24.50t + 9.5](https://tex.z-dn.net/?f=c%28t%29%20%3D%2024.50t%20%2B%209.5)
![132 = 24.50t + 9.5](https://tex.z-dn.net/?f=132%20%3D%2024.50t%20%2B%209.5)
![24.50t = 122.5](https://tex.z-dn.net/?f=24.50t%20%3D%20122.5)
![t = \frac{122.5}{24.5}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B122.5%7D%7B24.5%7D)
![t = 5](https://tex.z-dn.net/?f=t%20%3D%205)
He bought 5 tickets.