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
Tema [17]
3 years ago
11

A plane traveled 1248 miles to Ft. Worth and back. The trip there was with the wind. It took 12

Mathematics
1 answer:
Artemon [7]3 years ago
6 0

speed of the  plane in still air is 76 m/s and speed of the wind is 28 m/s .

<u>Step-by-step explanation:</u>

Here we have , A plane traveled 1248 miles to Ft. Worth and back. The trip there was with the wind. It took 12  hours. The trip back was into the wind. The trip back took 24 hours. We need to find What is the speed of the  plane in still air? What is the speed of the wind? Let's find out :

<u>For Going trip :</u>

Let speed of plane be u , and wind be v so : Speed = ( Distance ) / ( time )

⇒ u+v = \frac{1248}{12}

⇒ u+v = 104   ...........(1)

<u>For Returning Trip :</u>

⇒ u-v = \frac{1248}{24}

⇒ u-v = 52   ...........(2)

Adding both equations we get :

⇒ (u+v)+(u-v)=104+52

⇒ 2u=156

⇒ u= 76m/s

Putting this value in equation (1) we get :

⇒ 76+v = 104

⇒ v=28m/s

Therefore , speed of the  plane in still air is 76 m/s and speed of the wind is 28 m/s .

You might be interested in
How do you solve something like this?
sdas [7]

Answer:

-24

Step-by-step explanation:

First, use the equation find the value of x. Then, substitutes the value of x into 9x+12.

8 0
2 years ago
A group of six tourists arrive at an airport gate 15 minutes before flight time, but only two seats are available.
melomori [17]
8 different groups are aloud in the plane

8 0
3 years ago
Read 2 more answers
Which is the expanded form of 124,750,000?
frez [133]

Answer: The correct answer is B.

Step-by-step explanation:

100,000,000 + 20,000,000 + 4,000,000 + 700,000 + 50,000 = 124,750,000

7 0
3 years ago
Read 2 more answers
Study the equation.<br> x² + 6x = - 4
Zinaida [17]

Answer:

x = -3+√5,  -3-√5 (exact roots)

or  x = -0.76, -5.24   to the nearest hundredth.

Step-by-step explanation:

x² + 6x = - 4

Completing the square:

(x + 3)^2 - 9 = -4

(x + 3)^2 = 5

x + 3 = +/-√5

x = - 3 + √5, - 3 - √5

5 0
3 years ago
Mary has 18 marbles. If Tim has 5 times as many marbles as Mary, which number sentence shows how many marbles Tim has?
mariarad [96]

Answer:

A

Step-by-step explanation:

18 x 5 = 90

3 0
2 years ago
Read 2 more answers
Other questions:
  • If the cost is $35.96 and the desired markup is 10%, what is the price after markup? 3.60 39.56 359.60 395.60
    8·1 answer
  • All interior angles are congruent True or False
    9·1 answer
  • An individual is hosting a cookout for the kick ball team. The individual wants to have two hot dogs for each guest, and 6 extra
    7·1 answer
  • What are the center and radius of the circle defined by the equation ?
    13·1 answer
  • The table shows the frequency of colors in a bag of skittles. Based on this data, what is the approximate probability that a BLU
    10·2 answers
  • The graph of a proportional relationship contains the point with coordinates (3 , 12). What is the constant of proportionality o
    7·2 answers
  • Solve. d + 8 &lt; 35<br><br> A d &lt; –27<br> B d &lt; 27<br> C d &lt; –43<br> D d &lt; 43
    10·1 answer
  • Georgia is reading at a rate of 2 pages everything 5 minutes. Which graph below shows the same unite rate?
    10·2 answers
  • The expression -7y is a<br><br> a. term<br> b. variable<br> c. constant
    5·2 answers
  • Ariana is writing a poem. She writes 30 words on the first line, 30 words on the second line, 30 words on the third line, and 30
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!