1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ghella [55]
3 years ago
13

A fisherman can row upstream at 2 mph and downstream at 8 mph. He started rowing upstream until he got tired and then rowed down

stream to his starting point. How far did the fisherman row if the entire trip took 7 ​hours?
Mathematics
1 answer:
Marina CMI [18]3 years ago
4 0

The fisherman rowed a total of 22.4 miles.

<u><em>Explanation</em></u>

Suppose, the distance from his starting point to the turn around point is d mile.

Given that, upstream speed is 2 mph and downstream speed is 8 mph.

We know that,  Time= \frac{Distance}{Speed}

So, the time required to row d miles upstream = \frac{d}{2}  hours and the time required to row d miles downstream = \frac{d}{8}  hours.

As the entire trip took 7 ​hours, so the equation will be......

\frac{d}{2}+\frac{d}{8}= 7\\ \\ 8(\frac{d}{2}+\frac{d}{8})= 8*7\\ \\ 4d+d= 56\\ \\ 5d= 56\\ \\ d= \frac{56}{5}=11.2

So, the fisherman rowed a total of (11.2×2) miles = 22.4 miles

You might be interested in
What is the formula for the area A of a circle in terms of the radius r?
Sever21 [200]

Answer:360

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Identify which table shows a direct variation.
DochEvi [55]
Only Table 2 shows direct variation.  Every y value is 7 times the associated x value.



8 0
3 years ago
What is the equation of the line that passes through the point (-4,8) and has a slope of -1/4
iragen [17]

Answer:

Step-by-step explanation:

When a slope of a line and a point passing through it is given then we use slope - one point form to determine the equation of the line.

It is given by:

                      $ (y - y_1) = m (x - x_1) $

where $m$ is the slope of the line and

           $ (x_1, y_1) $ is the point passing through it.

Here, $ m = \frac{-1}{4} $ and $ (x_1,y_1) = (-4,8) $

Substituting in the equation:

$ y - 8 = \frac{-1}{4} (x + 4) $

$ \implies 4y - 32 = -x - 4 $

$ \implies x + 4y - 28 = 0 $

3 0
3 years ago
The length of a rectangle is 15 inches, and its width is 10 inches. If the area must remain 150 square inches, and the length is
Crazy boy [7]

Answer:

3.33333

Step-by-step explanation:

You have to put:

If 15 ------------- becomes 5

then 10--------- becomes X

like this type of rule says, you should do:

(10x5)/15= 3.33333

8 0
3 years ago
Pls help me my hw is due soon!!!!!!!
g100num [7]
I think I can help, let me do some more existential research and I’ll get back to you
7 0
3 years ago
Other questions:
  • Plzzzzz help 20 pts<br><br> whats is the value of 1\2
    13·2 answers
  • Whats the answer to this please
    7·1 answer
  • The value of the 2 in 5072 is how many times more than the value of 2 in 2481?
    7·1 answer
  • Brad has a government bond that will be worth $10,588.13 in seven years. The bond has an interest rate of 6% compounded semiannu
    12·1 answer
  • PLEASE HELP ME 10 POINTS!!!!!
    11·1 answer
  • Calculate the distance between these points in the coordinate plane.
    7·1 answer
  • What is the slope of the line that passes through (1,-4) and (-4,-6)​
    10·1 answer
  • If ab perpendicular to cd and the slope of ab = 1 over 2 then the slope of cd =
    5·1 answer
  • Find the coordinates of the vertices of each figure after the given transformation.
    13·1 answer
  • Gordon types 1,972 words in 29 minutes<br> Gordon types _______ words per minute<br> PLSSS HELPP ME
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!