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Serjik [45]
3 years ago
10

A plane flies 1225 miles with the wind in the same time it can fly 1100 miles into the wind. The speed of the plane in still air

is 575 miles per hour. Which equation would you use to find the speed of the wind?​
Mathematics
1 answer:
iogann1982 [59]3 years ago
8 0

Answer:

Step-by-step explanation:

v=d/t, t=d/v, since t=t

1225/(v+w)=1100/(v-w)

1225v-1225w=1100v+1100w

2325w=125v

w=125v/2325, given v=575

w=125(575)/2325

w=30.91 mph

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Solve each equation. Check 19. x(x - 32)=0​
Readme [11.4K]

Answer:

x is equal to thirty-two.

Step-by-step explanation:

x(x - 32) = 0

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4 0
3 years ago
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Rus_ich [418]
You can just 1) multiply the binomial by itself, or you can use 2) the square of a binomial pattern. I'll show it to you both ways.

1) Multiply the binomial by itself.

(3x - 2)^2 = (3x - 2)(3x - 2) =

Multiply every term of the first binomial by every term of the second binomial, then collect like terms. (This is often called using FOIL.)

= 9x^2 - 6x - 6x + 4

= 9x^2 - 12x + 4

2) Use the square of a binomial pattern

The square of a binomial is

(a - b)^2 = a^2 - 2ab - b^2

a^2 is the square of the first term.
b^2 is the square of the second term.
-2ab is the product of the two terms and 2.

You have

(3x - 2)^2,
where the first term is 3x, and the second term is -2

square the first term: 9x^2
square the last term: 4
the product of the terms and 2 is: -12x

Put it all together, and you get

9x^2 - 12x + 4

just like we got above with the other method.
7 0
3 years ago
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Answer: x axis is time in hours, y axis is water level in centimeters

I can't see the rest of the problem since you didnt show it

Step-by-step explanation:

7 0
3 years ago
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