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
Fiesta28 [93]
3 years ago
9

At maximum speed, an airplane travels 2460 miles against the wind in 6 hours. flying with the wind, the plane can travel the sam

e distance in 5 hours. what is the speed of the plane with no wind?
Mathematics
1 answer:
shtirl [24]3 years ago
8 0

Answer:


Step-by-step explanation:

R is the speed of the plane

S is the speed of the wind

(R-S)*7 = 7490 <--- against the wind

(R+s)*9 = 11610 <--- with the wind

Distributes:

7R - 7S  = 7490

9R + 9S = 11610

Multiplies the top equation by 9

and the bottom equation by 7

63R - 63S = 67410

63R + 63s = 81270

126R = 148680

R=1180

Plugs into original first equation

(R-S)*7 = 7490

(1180-s)*7 = 7490

 1180 - s = 7490/7

1180 - s = 1070

-s = -110

s = 110

The speed of the plane in still air is 1180

The spped of the wind is 110

This is awfully fast.

You might be interested in
Hey can anyone help me find the missing side lengths please and thank you
alex41 [277]

Answer:

choice a

Step-by-step explanation:

angle 45 means, its a isosceles triangle.

so y = √3

x^2 = 3+3= 6

x = √6

3 0
2 years ago
The following dot plot shows the number of chocolate chips in each cookie that Shawn has. Each dot represents a different cookie
Westkost [7]

Answer:

It is 5. I got it right on khan academy! Thanks for the answer!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
G(4) =????<br> Can Someone please help Me on this question
melomori [17]

Answer:

when x=4, the value of y is the answer.

when x=4,we can see that the value of y is 1

8 0
3 years ago
The equation of the line WX is 2X plus Y equals -5 what is the equation of a line perpendicular to line WX in slope intercept fo
tensa zangetsu [6.8K]

Answer:

y = \frac{1}{2}x - \frac{3}{2}

Step-by-step explanation:

The equation of the line WX is, 2x + y = - 5

⇒ y = - 2x - 5 .......... (1)

This equation is in slope-intercept form and the slope is - 2 and the y-intercept is - 5.

Now, if a line perpendicular to equation (1) having slope m then, m × (- 2) = - 1

⇒ m =  \frac{1}{2}

{Since the product of slopes of two mutually perpendicular straight line is - 1}

Therefore, the equation of the perpendicular line is

y = \frac{1}{2}x + c, where c is a constant and we have to find it.

This above line passes through the point (-1,-2) and hence

- 2 = \frac{1}{2}(- 1) + c

⇒ c = - \frac{3}{2}

Therefore, the equation of the line will be y = \frac{1}{2}x - \frac{3}{2} (Answer)

4 0
3 years ago
Two of the lights at the local stadium are flickering. They both just flickered at the same time. One of the lights flickers eve
irinina [24]
1,665
because 777+888 = 1,665

7 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose you first want to eliminate the fraction in 4n=1/2(2n-12). What would your first step be? Is -2 still the solution when
    6·1 answer
  • Find the midpoint of the segment with the given endpoint M(-2,1) and N (-3,2)
    12·1 answer
  • 2/5 simply to a decimal
    15·2 answers
  • A consumer charges a $46.92 purchase on a credit card. The card has a daily interest rate of 0.039%. If the consumer pays off th
    13·2 answers
  • An u guys help me with -2f+3-2f-8
    11·1 answer
  • Which of the following is expressions is equivalent to 19 x(4 3/5 - 2.75) - 12 1/2
    10·1 answer
  • ASAP
    11·1 answer
  • What is 7500 written in scientific notation
    7·2 answers
  • There are 15 boys and 16 girls in Gabriel’s class. One person is chosen at random. What is the probability that the person chose
    7·1 answer
  • What is the expression in factored form?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!