Answer:
Step-by-step explanation:
Let the speed of the current be c
<u>Time upstream is</u>
<u>Time downstream is</u>
<u>Total time is 8 hours</u>
- 55/(16 + c) + 55/(16 - c) = 8
- 55(16 -c + 16 + c)/(16 + c)(16 - c) = 8
- 55*32= 8*(16² - c²)
- 220 = 256 - c²
- c² = 36
- c = 6 mph
Answer:
2. 1. 3.
Step-by-step explanation:
my explanation is that it goes from least to greatest from the answer so i put number 2. first answer is 1, and 1. next answer of 3, ans lastly 3. with a answer of 10.
they are right
you do not need to do anything else
good luck
So for 4, first thing you need is slope. Choose 2 points. I am choosing (8,2) and (6,3) So, then its the second y term subtracted by the first y term over(Or divided by) the second x term subtracted by the first x term.
3-2/6-8 or 1/-2 or -.5 (negative 0.5)
Now, time to find the yintercept(yint). So, choose one of the points, Im choosing (8,2), and put it into slope intercept, but leave yint as b.
(2)=-.5(8)+b
simplify
2= -4+b
subtract -4
b=6
So, your answer is y= -0.5x+6
I will right number 6 in anoher answer