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
stepladder [879]
4 years ago
8

An airplane took 2 hours to fly 600 km against a head wind. The retrun trip with the wind took 1 and two thirds hours. Find the

speed of the plane in stll air.
Mathematics
1 answer:
Snezhnost [94]4 years ago
4 0

330 km/hr

Step-by-step explanation:

To find speed of the plane against the headwind;

600 km / 2 hours = 300 km/hr

Speed of plane with the wind in its back;

600 km / 5/3 hours = 600 * 3/5 = 360 km/hr

We can create a simultaneous equation from this data.

Assume the speed on pane in still air is x km/h

Assume the speed of wind is y km/h

Therefore;

x – y = 300

x + y = 360

Solving the simultaneous equation by elimination gives us;

x – y = 300

-

x + y = 360

=

-2y = - 60

y = 30

x = 330

The speed of the plane without wind is;

= 330 km/hr

The wind speed is;

= 30 km/hr

Learn More:

brainly.com/question/3841552

brainly.com/question/12397541

#LearnWithBrainly

You might be interested in
Please help find mDF!!
Natalka [10]

9514 1404 393

Answer:

  72°

Step-by-step explanation:

The external angle E is half the difference of subtended arcs CG and DF.

  E = (CG -DF)/2

  2E = CG -DF . . . . . . multiply by 2

  DF = CG -2E = 160° -2(44°) . . . . . add DF-2E to both sides; substitute values

  arc DF = 72°

4 0
3 years ago
In 1990, the profit of the Gamma company was $11.900,848. Each year after 1990profits fell by \$48,263 on average Construct a li
Marina86 [1]

Answer:

$10452958

Step-by-step explanation:

Initial profit = $11900848

Fall rate= $48263 per year

Equation:

  • P(x)= 11900848 - (x-1990)*48263,

where P(x)= profit at year of x, and 1990<x<2020

  • P(2020)= 11900848- 30*48263= $10452958
4 0
3 years ago
HELPPP!!! can someone turn 3x−2=13 into a WORD problem. (i already know answer)
postnew [5]
Answer:
2 less than 3 times a number is 13
5 0
2 years ago
Please solve the question below 1
Fiesta28 [93]

Answer:

A

Step-by-step explanation:

Find the mean:

Day 1: 2

Day 2: 1

Day 3: 4

Day 4: 5

Day 5: 0

Day 6: 7

Mean = \frac{2 + 1 + 4 + 5 + 0 + 7}{6} = 3.17

This does not exceed a daily mean of 3.5 hours which was set by her mom as a guideline.

Therefore we can conclude that:

"Chawrdi complied with the guideline because the mean number of hours played is \frac{2 + 1 + 4 + 5 + 0 + 7}{6} = 3.17.

8 0
3 years ago
the ratio of two numbers is 4:5 after adding 20 to the smaller number and subtracting 20 from the greater number the ratio becom
Kamila [148]

Answer:

The numbers are 120 and 150.

Step-by-step explanation:

Please see the attached pictures for the full solution.

4 0
3 years ago
Other questions:
  • Please help me !!! need help will mark brainly
    9·1 answer
  • The graph represents the piecewise function
    15·2 answers
  • Is the quotient of (-5) ÷ (-7) a rational number? Explain your answer in two or more complete sentences.
    5·1 answer
  • find the height of the cylinder below whose volume is approximately 1000 cubic inches use 3.14 for pi round your answer to the n
    8·1 answer
  • Which best describes how readers react to a persuasive article with graphs versus a persuasive article without graphs?
    12·1 answer
  • ANSWER QUICK PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    15·1 answer
  • Can someone please explain to me how to do this I don't understand it at alll!
    8·1 answer
  • I need help with this plsss
    12·1 answer
  • Find q.<br> 60 °<br> 30 °<br> 4<br> q<br> Write your answer in simplest radical form.
    8·1 answer
  • The length of a rectangle is 2x-3 feet, and the width is 5 feet. What is the area of the rectangle in square
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!