To solve for the time it takes to travel a certain distance at a certain speed, use the formula,
time = distance / speed
Given that the entire journey takes four hours, add up the time it takes David to row upstream with that of him travelling downstream. This is mathematically represented as,
total time = time upstream + time downstream
4 = 3/(x - 1) + 3/(x +1)
Solving for x in the equation gives 2. Thus, David's speed in still water is 2 miles per hour.
Answer:A. (9, –36)
Step-by-step explanation:
A. (9, –36)
Answer:
A
Step-by-step explanation:
All you have to do is simplify all of them and put them in order from least to greatest.
Whenever you cut a sandwich in four parts, you make four small sandwiches out of each sandwich you're cutting.
So, if you have six sandwiches, and make four small sandwiches out of each of them, you'll end up with
small sandwiches
Answer:
the function is either increasing or decreasing
Step-by-step explanation:
For m ≠ 0, the function must be either increasing or decreasing. If the function is increasing, it will have its maximum value at the right end of the interval. If it is decreasing, its maximum value will be at the left end of the interval.
