Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

A school of tuna is making a 200 mile trip at an average air speed of 3 miles per hour in still water, but is swimming againist a current. Express the tuna's travel time t, as a function of the current speed, v.

Mathematics
See more answers at brainly.com
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Join Brainly to access

this expert answer

SEE EXPERT ANSWER

To see the expert answer you'll need to create a free account at Brainly

So, their actual speed is the "air speed" minus the current: s = 3-v And the time it will take them to make the trip is the distance divided by their speed: t = 200/s t= 200/(3-v)
and write and solve an equation to find the current spees if the school make its trip in 8 hours.
For that, just take the final equation and solve it for v: t = 200/(3-v) 3 - v = 200/t v = 3 - 200/t and plug in 8 for t: v = 3 - 200/8 = -22 (the negative number just means that the current is working in their favor)

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

so thats the answer
-22
is this right
can u help
Should be right, assuming I didn't make a math error somewhere.

Not the answer you are looking for?

Search for more explanations.

Ask your own question