Write a recursive and explicit formula for the following sequence: 21, 24, 27, ...
2 answers:
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Answer:
The rate of the boat in still water is 40 miles per hour
The rate of the current is 10 miles per hour
Step-by-step explanation:
we know that
The speed or rate is equal to divide the distance by the time
Let
x ----> the rate of the current (miles per hour)
y ----> the rate of the boat in still water (miles per hour)
we have that
<em>going upstream </em>
----> equation A
<em>going downstream </em>
----> equation B
Solve the system of equations by elimination
Adds equation A and equation B
<em>Find the value of x </em>
therefore
The rate of the boat in still water is 40 miles per hour
The rate of the current is 10 miles per hour
Answer:
The distance traveled between 10 minutes and 15 minutes is increasing.
Step-by-step explanation:
Jacob is going on a road trip across the country. He covers 10 miles in 15 minutes.
Therefore, between the 10 minutes and 15 minutes, Jacob was in motion and if he covers 10 miles in 15 minutes with a constant speed, then Jacob will cover miles in that period.
So, the distance traveled between 10 minutes and 15 minutes is increasing.
(Answer)