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
Vikki [24]
3 years ago
6

The speed of the current in a river is 6mph. A ferry operator who works that part of the river is looking to buy a new boat for

her business. Every day, her route takes her 22.5 miles each way against the current and back to her dock, and she needs to make the trip in a total of 9 hours. She has a boat in mind, but she can only test it on a lake where there is no current at all. How fast must the boat go on the lake in order for it to serve the ferry operator's needs?

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
4 0
Hello,
Please, see the attached files.
Thanks.

You might be interested in
What value of x is in the solution set of 2(3x – 1) ≥ 4x – 6?
shtirl [24]
<span>The answer is x ≥ -2. First use distributive property to simplify the left side of inequality: 2(3x – 1) ≥ 4x – 6. 2 * 3x - 2 * 1 ≥ 4x - 6. 6x - 2 ≥ 4x - 6. Rearrange it to get x on the one side and integers on the other side of inequality: 6x - 4x ≥ 2 - 6. Solve for x: 2x ≥ -4. x ≥ -4/2. x ≥ -2.Hope this helps. Let me know if you need additional help!</span>
3 0
3 years ago
Read 2 more answers
Find the surface area of the pyramid to the nearest whole number.
Daniel [21]

Answer:

D) 408 in^2

Hopefully this helps!!

6 0
3 years ago
A piece of land is shaped like a right triangle. Two people start at the right angle at the same time, and walk at the same spee
sweet [91]

Answer:

1 m/s

Step-by-step explanation:

the area of the triangle = A = ¹/₂ab

where a is the distance covered by the first person and b is the distance covered by the second person. since they walk at the same speed, then a = b, so our formula can be changed to A = ¹/₂x²

now we find the derivative of both sides:

dA/dt = ¹/₂ ⋅ dx²/dt

dA/dt = ¹/₂ ⋅ 2x ⋅ dx/dt

dA/dt = x ⋅ dx/dt = x ⋅ velocity

we are told that x = 5 m, and dA/dt = 5 m²/s

velocity = dA/dt / x

velocity = 5 m²/s / 5 m = 1 m/s

7 0
4 years ago
How do you write 6x=7y in standard form
Anastasy [175]
Standard form is ax+by=c
mnus 7y both sides
6x-7y=0
5 0
3 years ago
Show that vertical opposite angles are equal​
pashok25 [27]
Vertical Angles: Theorem and Proof
Theorem: In a pair of intersecting lines the vertically opposite angles are equal. It can be seen that ray \overline{OA} stands on the line \overleftrightarrow{CD} and according to Linear Pair Axiom, if a ray stands on a line, then the adjacent angles form a linear pair of angles.
4 0
3 years ago
Other questions:
  • A bowl contains 11 blue, 8 yelow, 12 red, and 9 green marbles. Find the probability
    9·1 answer
  • The spray from a sprinkler reaches 21 feet from the sprinkler and creates a circle as it spins. what is the circumference of the
    8·2 answers
  • I will give you extra point and mark you braniest if you give me an explanation on how to find the answer.
    15·2 answers
  • Help! please i’m stuck
    15·1 answer
  • 16÷4 what is the quotient expressed as a fraction
    10·1 answer
  • Solve for the value of x.
    8·1 answer
  • -8≤2/5(k-2)<br><br><br><br> How do i show my work<br> will give BRAINLEST
    13·1 answer
  • Mhanifa please help me on this! I will mark brainliest
    10·2 answers
  • I'LL GIVE BRAINLIEST TO FIRST ACTUAL ANSWER AND A LOT OF POINTS TO THE REST JUST HELP ME OUT- Solve and check: ½ (c – 24) + 2/3c
    7·2 answers
  • Help ASAP <br> √3 (5 + √2)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!