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
Helen [10]
3 years ago
8

How far from an airport can an airplane fly and return in 8 hours, if it's outgoing speed is 160 km per hour and it's returning

speed is 240 km per hour
Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
4 0
<span>speed = distance/time
total time is 8 hours

outgoing speed is 160 km per hour, 
so time = d/160

</span><span>returning speed is 240 km per hour,
so time = d/240

 d/160 + d/240 = 8

3d/480 + 2d/480 = 8
5d/480 = 8
5d =480 (8)
5d = 3840
d=3840/5
d=768

answer: so the distance is 768 km</span>
iragen [17]3 years ago
4 0
T = 8 h
v1 = 160 km/h
v2 = 240 km/h

mmc 160 e 240 = 80
s = 80*8
s = 640 km


You might be interested in
Which property should Remus use to solve the equation below? 7 q = 49 division property of equality addition property of equalit
AysviL [449]

The division property of equality should Remus used to solve the given equation and this can be determined by using the given data.

Given :

Equation is 7q = 49.

The following steps can be used in order to determine the property that Remus use to solve the given equation:

Step 1 - Write the given equation.

7q = 49

Step 2 - The arithmetic operations can be used in order to evaluate the given equation.

Step 3 - Using the division property of equality the value of 'q' can be determined.

q = \dfrac{49}{7}

q = 7

Therefore, the correct option is A).

For more information, refer to the link given below:

brainly.com/question/11897796

6 0
2 years ago
Read 2 more answers
Please explain how you get the answer to...<br> a+2a+7+4a-8
sammy [17]

Answer:

9+2a+7+4a-8

2a+16+4a-8

2a+8+4a

6a+8

Step-by-step explanation:

you can't really get an answer for this problem but you can simplify it

8 0
2 years ago
Find a power series representation of e^x sin(x)
liberstina [14]
The Taylor series is defined by:
f(x) = \sum \frac{f^n (a)}{n!} (x-a)^n

Let a = 0.
Then its just a matter of finding derivatives and determining how many terms is needed for the series.

Derivatives can be found using product rule:
f^n (x) = e^x g^{n-1} (x) + e^x g^n (x)  \\ g^0 (x) = sin x

Do this successively to n = 6.
f^1 (x) = e^x (sinx +cos x) \\ f^2 (x) = e^x (2cos x)  \\ f^3 (x) = e^x(2cos x - 2sin x)  \\ f^4 (x) = e^x (-4 sin x)  \\ f^5 (x) = e^x(-4sinx -4cos x) \\ f^6(x) = e^x(-8cos x)

Plug in x=0 and sub into taylor series:
e^x  sin x = x+x^2 +\frac{x^3}{3} -\frac{x^5}{30}-\frac{x^6}{90}...

If more terms are needed simply continue the recursive derivative formula and add to taylor series.
6 0
3 years ago
Please help i will give brainliest thank you
melomori [17]

Answer

MULTIPLY 2.2 & 5.5

Step-by-step explanation:

4 0
2 years ago
34.7985347985 rounded to the nearest tenth
Nina [5.8K]
The answer would be 34.8 I’m pretty sure
7 0
2 years ago
Read 2 more answers
Other questions:
  • Marti is filling a 10– inch diameter ball with sand to make a medicine ball that can be used for exercising. To determine if the
    9·1 answer
  • Please answer this correctly
    13·1 answer
  • 3. HELPPP asaaaaaapppppp
    7·1 answer
  • I am thinking of a positive number. If I square it, double the result, take half of that result, and then add 12, I get 21. What
    5·1 answer
  • What is 2 meters in centimeters??
    10·2 answers
  • Help please?-LeSandwich
    12·1 answer
  • Whats 20 x 213 =? REEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    15·2 answers
  • Kendrick and Perla spend a total of $92 at an amusement park. They spend $15 on parking, $13 at lunch, and the rest on two admis
    15·2 answers
  • If 3/4 of the distance between two places is 30km, how much is 2/5 of the distance is these places? Solve it with unitary method
    11·2 answers
  • Look at the pic below an help pls
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!