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
soldier1979 [14.2K]
3 years ago
12

It will take an hour for plane A to meet plane B which is flying in the opposite direction. If, in 45 minutes, the distance betw

een them will be 200 miles, how far apart are they now?
Mathematics
2 answers:
Leto [7]3 years ago
6 0

Answer:

800

Step-by-step explanation:

Let a = speed of the plane A, and b = speed of plane B.

(Assume that the net effect of the wind is negligible.)

From the first sentence, the distance between A and B after each travels for 1 hour is a + b miles. From the second sentence, after 45 minutes, or 0.75 hour, the distance between A and B is 200 miles. Plane a has traveled 0.75a, while plane B has traveled 0.75b.

Hence a + b = 0.75a + 0.75b +200

==> 0.25(a + b) = 200.

==> a + b = 800.

Therefore planes A and B are 800 miles apart now

eduard3 years ago
4 0

Answer:

Let a = speed of the plane A, and b = speed of plane B.

(Assume that the net effect of the wind is negligible.)

From the first sentence, the distance between A and B after each travels for 1 hour is a + b miles. From the second sentence, after 45 minutes, or 0.75 hour, the distance between A and B is 200 miles. Plane a has traveled 0.75a, while plane B has traveled 0.75b.

 

Hence a + b = 0.75a + 0.75b +200

==> 0.25(a + b) = 200.

==> a + b = 800.

Therefore planes A and B are 800 miles apart now.

You might be interested in
Given that your monthly expenses for the house that you want to purchase totals $1,562.30 (this includes the house payment, annu
alexandr1967 [171]
B..................................
6 0
3 years ago
What’s the equation.
cestrela7 [59]

Answer:

c=42

s=30

Step-by-step explanation:

5 0
3 years ago
The students in a college marching band are arranged in rows. The recursive rule f(n) = f(n − 1) + 8 and f(1) = 13 gives the num
anzhelika [568]

Answer:

There are 24 more trumpet players than clarinet players

Step-by-step explanation:

The given information are;

The recursive rule or the number of band members in a row is f(n) = f(n - 1) + 8

Where f(1) = 13

The members of the band players in row 1 = The clarinet players

The members of the band players in row 4 = The trumpet players

Therefore, the number of clarinet players = f(1) = 13

The number of band members in row 2, f(2)  = f(1) + 8 = 13 + 8 = 21

The number of band members in row 3, f(3)  = f(2) + 8 = 21 + 8 = 29

The number of band members in row 4, f(4)  = f(3) + 8 = 29 + 8 = 37

Therefore, given that the trumpet players are in row 4, the number of trumpet players = The number of band members in row 4 = 37 Trumpet players

The difference in the number of trumpet and clarinet = The number of more trumpet players than clarinet players = 37 - 13 = 24 more trumpet players than clarinet players

There are 24 more trumpet players than clarinet players.

3 0
3 years ago
Can u answer fast please
Gnesinka [82]

C. e

Step-by-step explanation:

ln( {e}^{e} )  = e ln(e )  = e(1) = e

6 0
2 years ago
Find the area of each polygon​
sweet [91]

Answer:

5 in^2

Step-by-step explanation:

Area of square: 2*2=4

Area of triangle: 2*1/2=1

4+1=5

4 0
3 years ago
Other questions:
  • Kellens bill at a restaurant before tax and tip is $22 if tax is 5.25% and we wants to leave 15% of the bill including the tax o
    7·2 answers
  • Which one of the following statements is NOT true of a free-falling object? An object in a state of free fall ____.
    6·1 answer
  • The function h=-16t^2 +1700 gives you the height h, of an object in feet, at t seconds. How long will it take the object to hit
    5·1 answer
  • A teacher spends
    5·1 answer
  • What is the measurement of m&lt;2. please explain.​ <br>​
    14·1 answer
  • Three Texas drovers met on a highway and began to dicker as follows:
    9·1 answer
  • What is slop of the line that passes through the ponitss (5, -4) and (7, -4)
    14·1 answer
  • What steps do i take to prove this? i have a few more
    11·1 answer
  • Need help, I don’t understand this!
    7·1 answer
  • How many times greater is 3.9*10^-4 than 7.8 10^-6
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!