A. first choice
<span>The values of a and b are both equal to –4.</span>
Answer:
Step-by-step explanation:
1. 8 days
2. C?
3. A
4. B
5. C
6.D
7.48
8. A
9. 1.69%
10. False
I have no clue if these are right i tried my best to get them right, if they are wrong I am incredibly sorry!
- SavageSavvy
V - the crew rowing rate,
u - rate of the current.
Downstream: v + u = 13.5/1.5 = 9 mph
Upstream : v - u = 13.5/4.5 = 3 mph
u = 9 - v
v - ( 9 - v ) = 3
v - 9 + v = 3
2 v = 12
v = 6 mph, u = 9 - 6 = 3 mph
Answer: the crew`s rowing rate is 6 mph and the rate of the current is 3 mph.