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4 years ago

6

What is the Y intercept in the equation Y equals 45X +65?

1 answer:

VashaNatasha [74]4 years ago

3 0

The typical form of the slope intercept equation would be:

Y = mX + B

Where b is the y intercept, thus in thus case the y intercept would be 65 = (0,65).

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A plane traveled 240 miles. The trip was with the wind. It took 3 hours. The trip back was into the wind. The trip back took 6 h

sveta [45]

Answer:

Plane speed is 60 miles/hour

Wind speed is 20 miles/hour

Step-by-step explanation:

Lets suppose the speed of the plane in still air is s and speed of the wind is w and since speed in the formula below equals speed of the plane plus the wind's speed so speed=s+w for this journey with the wind

$Speed=\frac{Distance}{Time}$

$Distance=Speed*Time$

For the first journey the trip with the wind:

$Distance=Speed*Time\\240=(s+w)(3)\\240/3=s+w\\s+w=80$

Here we got our first equation for the second equation we use the information from the second trip which was into the wind. Which means the speed here would be speed=s-w

$Distance=Speed*Time\\240=(s-w)*6\\240/6=s-w\\s-w=40$

so now we got our two equations adding both equations would result into the following:

$s+w=80\\s-w=40\\2s=120\\s=60$

so speed of the plane is 60 miles/hour put the value of s in any our two equations to calculate the wind speed, lets take the first equation:

$s+w=80\\60+w=80\\w=80-60\\w=20$

so the wind speed is 20 miles/hour

8 0

3 years ago

Red queens and black jacks are removed from a pack of 52 cards. A card is drawn at random from the remaining cards, after reshuf

FinnZ [79.3K]

Answer:

option 2

Step-by-step explanation:

just did it

mark brainlyist

3 0

3 years ago

Cindy has 2 boxes of pencils. Patrice has 5 boxes of pencils. Each box has the same number of pencils in it. Write an expression

musickatia [10]

Answer:

7x

Step-by-step explanation:

4 0

4 years ago

Pls help! brainliest , rattings , thanks etc.

rewona [7]

The correct answer is C.

4 0

3 years ago

Read 2 more answers

Simplify -2 1/6 -7 1/3

mash [69]

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▹ Answer

<em>-9 1/2 → -9.5</em>

▹ Step-by-Step Explanation

-2 1/6 - 7 1/3

-(2 1/6 + 7 1/3)

-((2 + 7) + (1/6 + 1/3))

-(9 + (1/6 + 1/3))

FINAL ANSWER = -9 1/2

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

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5 0

3 years ago