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
Sergio [31]
2 years ago
8

(question in image) i need the equation and it solved

Mathematics
1 answer:
lorasvet [3.4K]2 years ago
3 0

Answer:

  • Option A
  • Speed of plane is 240 km/h, speed of wind is 50 km/h

Step-by-step explanation:

With the tail wind the total speed is the sum of the speeds of plane and wind.

When into wind the total speed is the difference of speeds of plane and wind.

The first equation is

  • (r + w)*6 = 1740

The second equation is

  • (r - w)*3 = 570

Simplify both equations and solve the system

  • r + w = 1740/6 ⇒ r + w = 290
  • r - w = 570/3 ⇒ r - w = 190

Solve by elimination, add up the equations

  • r + w + r - w = 290 + 190
  • 2r = 480
  • r = 240

Find the value of w

  • 240 + w = 290
  • w = 290 - 240
  • w = 50
You might be interested in
Does 48/144 = 5/15?.......................... I just put the dots because the question has to be 20 characters long sooooooooooo
alexdok [17]
48/144=1/3
5/15=1/3.
As a result, 48/144 does equal 5/15. Hope it help!
6 0
3 years ago
Read 2 more answers
If a 45 45 90 triangle has the hypothenuse of 10 what would the legs x and y be
melamori03 [73]

Answer:

Step-by-step explanation:

When working with 45-45-90 triangles the hypotenuse is the same as the other legs multiplied by root 2. Therefore if you need to find the legs and already have the hypotenuse, divide the hypotenuse by root 2.

10/ sqrt(2) = 7.1 is the rounded answer.

to double check your work just multiply 7.1 by the square root of 2 and you'll get <em>close</em> to 10. (because the answer is rounded and not exact.)

3 0
3 years ago
When solving an equation like x3 = 64, why does our solution not include the negative cube root?
MAVERICK [17]
So I’m only answering so I can ask you a question
4 0
2 years ago
Read 2 more answers
Write the number 3.8 in the form a/b using integers , to show that it is a rational number
Neporo4naja [7]

Answer:

38/10

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
BRAINLIEST TO THE PERSON THAT ANSWERS FIRST
Oksana_A [137]

Answer:

A repeating decimal can be written as a fraction using algebraic methods, so any repeating decimal is a rational number.

Marco is wrong cuz its not repeating

6 0
2 years ago
Other questions:
  • Find the equation of a line that satisfies the given conditions; x-intercept = 2, and y-intercept = -8
    13·1 answer
  • A 120120​-inch pipepipe is cut into two pieces. one piece is fourfour times the length of the other. find the lengths of the two
    6·1 answer
  • An equation with more than one operation is called
    14·2 answers
  • Help plz <br> //????/////?/????///
    12·2 answers
  • In one U.S.​ city, the taxi cost is $2 plus $0.50 per mile. If you are traveling from the​ airport, there is an additional charg
    9·1 answer
  • Helllpppp): please !!
    11·2 answers
  • 9,051.7 divided by 5=?
    8·1 answer
  • Helppppppp meeeeeeee please
    5·1 answer
  • Twice a​ number, increased by ​three, is between negative one and nine. Find all the numbers.
    11·1 answer
  • The ma4 = (4x 22) and m48 = (5x). Find the value of x, mx4, and mx8.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!