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
pickupchik [31]
3 years ago
12

A plane can fly 290 miles downwind in the same amount of time as it can travel 220 miles upwind. Find the velocity of the wind i

f the plane can fly 255 mph in still air.
Mathematics
1 answer:
nikitadnepr [17]3 years ago
7 0

Answer:

The speed of the wind is 35\ mph

Step-by-step explanation:

Let

x-----> the speed of the wind in mph

we know that

Downwind

(255+x)=\frac{290}{t}

t=\frac{290}{(255+x)} -----> equation A

Upwind

(255-x)=\frac{220}{t}

t=\frac{220}{(255-x)} ----> equation B

equate the equation A and the equation B

\frac{290}{(255+x)}=\frac{220}{(255-x)}\\ \\290(255-x)=220(255+x)\\ \\ 73,950-290x= 56,100x+220x\\ \\220x+290x=73,950-56,100\\ \\510x=17,850\\ \\x= 35\ mph

You might be interested in
What are the approximate values of the non-integral roots of the polynomial equation?
Nookie1986 [14]

Answer:

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Help plz plz plz plz .
nikklg [1K]
The y intercept is where the line hits the verticals line of the graph. Hope this helps!

7 0
3 years ago
Help me please its urgent
jek_recluse [69]
Um division divide the letters
3 0
2 years ago
Read 2 more answers
A pizza place has pizzas in 2 different sizes, with 8 different flavors for the crust, and 8 different toppings.
mamaluj [8]

Use multiplication:

2\text{ sizes}*8\text{ flavors}*8\text{ toppings}=\large\boxed{128\text{ pizzas}}

This question is basically the same as the other question of yours that I answered, so the explanation is very similar:

You can imagine the possibilities as leaves on a tree. Your tree has 2 large branches to represent the two possible sizes. Each of those branch off into 8 smaller branches, each representing a crust flavor. Each one of the smaller branches has 8 leaves to represent a different topping. Each leaf is a combination of a size, a crust flavor, and a topping, so it represents a complete pizza. Your job is to calculate the number of leaves.

5 0
2 years ago
State the y-coordinate of the y-intercept for the function below of x^3-9x
prohojiy [21]

y = x^{3}  - 9x
y = 0^{3}  - 9(0)
y = 0
4 0
2 years ago
Read 2 more answers
Other questions:
  • Triangle ABC is an isoceles right triangle inscribed in a circle. the center of the circle is point D and the diameter of the ci
    8·1 answer
  • Find the center, vertices, and foci for the ellipse 25x^2 + 64y^2 = 1600
    9·1 answer
  • An isosceles right triangle has a leg that measures 6 in long. About how long is the hypotenuse?
    8·1 answer
  • Jenny is buying gifts for her family. So far she has spent $45.95, and she has one more gift to buy. She started with a total of
    13·2 answers
  • Jared wrote an equation for the perimeter of an equilateral triangle as 3x = 20. What does x represent in his equation?
    15·2 answers
  • Please help me thank you
    12·1 answer
  • Which number line shows the solution to x<-3
    13·2 answers
  • ∠1 and ∠2 are supplementary angles. m∠1 = x − 39, and m∠2 = x + 61. Find the measure of each angle.
    6·1 answer
  • Which statement is true about the regular octagon?
    13·1 answer
  • Tom, Mary and Bill are aged 10,12 and 15 years respectively. They share 259 euros in the same ratio as their ages. Find how much
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!