162/9 = 18 water bottles per case
Step-by-step explanation:
We want to find two things-- the speed of the boat in still water and the speed of the current. Each of these things will be represented by a different variable:
B = speed of the boat in still water
C = speed of the current
Since we have two variables, we will need to find a system of two equations to solve.
How do we find the two equations we need?
Rate problems are based on the relationship Distance = (Rate)(Time).
Fill in the chart with your data (chart attached)
The resulting speed of the boat (traveling upstream) is B-C miles per hour. On the other hand, if the boat is traveling downstream, the current will be pushing the boat faster, and the boat's speed will increase by C miles per hour. The resulting speed of the boat (traveling downstream) is B+C miles per hour. Put this info in the second column in the chart. Now plug it into a formula! <u>Distance=(Rate)(Time) </u>Now solve using the systems of equations!
Answer:
The next term is 54.
Step-by-step explanation:
Look carefully, and you will find that each number increases by 7.
12 + 7 = 19.
19 + 7 = 26.
26 + 7 = 33...
...and so on.
Therefore, the next term is 54 since 47 + 7 = 54.
Hope this helped!
Answer:
C: b=4
B: n= -2
A:-5
A: -2
Step-by-step explanation:
hope this helps sorry if any one of these is incorrect have a good rest of your day :) ❤