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
Liono4ka [1.6K]
3 years ago
15

A plane traveled 1456 miles to Bangkok and back. The trip there was with the wind. It took 13 hours. The trip back was into the

wind. The trip back took 26 hours. Find the speed of the plane in still air and the speed of the wind.
Mathematics
1 answer:
belka [17]3 years ago
3 0

Answer: speed of the plane in still air is 84 mph; speed of the wind is 28 mph.

Step-by-step explanation:

Let s =speed of plane in still air

let w = speed of the wind

(s+w) = ground speed with wind

(s-w) = ground speed against the wind

Then, use a distance equation for each way. Note that

distance = speed × time

13(s+w) = 1456

26(s-w) = 1456

Divide the 1st equation by 13, and divide the 2nd equation by 26, we will have:

s + w = 112

s - w = 56

Using elimination method

2s = 168

s = 168/2

s = 84

s = 84 mph plane speed in still air

s + w = 112

84 + w = 112

Wind speed, w = 112 - 84 = 28mph

You might be interested in
PLEASE HURRY WILL GIVE BRAINLIST ​
AleksandrR [38]

Answer:b2254

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
There are 88 girls and 96 boys in the sixth-grade what is the rate of girls to boys
BlackZzzverrR [31]

Answer:

It has to be A because its the only one that makes sense

Step-by-step explanation:

3 0
3 years ago
How long does it take for light from a star that is 8 light years away to reach Earth?
Scrat [10]

Answer:

Step-by-step explanation:

8 earth years

8 0
3 years ago
COOKING The instructions on a box of chicken patties state that one patty should be cooked for 2.5 minutes
Julli [10]

Answer:

y=1.5x+2.5 ,

y=32x+52 ,

y=32x+2.5 ,

or

y=1.5x+52

8 0
3 years ago
Keelahs clothing store buys coats for $50 and then sells them for $80 what is the percent of mark up on the price of the coat sh
olchik [2.2K]
I don't know if you meant profit or markup but, 

take the difference of $80 & $50 = $30

What percent of 50 is 30? It's 3/5 or 60%. So there is a 60% markup on the original price of 50$. 
3 0
3 years ago
Other questions:
  • Juan says, " When you put together unequal groups, you can only add," Is he correct? Explain
    10·1 answer
  • The square of a number ending with 9 will end with?<br>(a) 1 (b) 3 (c) 6 (d) 9​
    5·2 answers
  • 8) help me please and thanks
    6·1 answer
  • Where will the lines y= -2/5x + 1 and y= -2/5x - 2 intersect?
    10·1 answer
  • -3 1/2 x + 3.5 - x + 6.25
    9·2 answers
  • don't worry about the other writing I want to see it worked out step by step so I can work the rest out and learn how to do them
    9·1 answer
  • What are some<br> relationships between<br> intersecting lines?
    8·2 answers
  • Put the following equation of a line into slope-intercept form, simplifying all fractions x−6y= − 48
    6·2 answers
  • Y = (x)(x) is a parent function that makes a graph of a(n)
    15·2 answers
  • What is the equation of a line with a slope of -1 and a y-intercept of -5?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!