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Alekssandra [29.7K]
3 years ago
8

Is 2y=4x+8 a direct proportion?​

Mathematics
1 answer:
Marat540 [252]3 years ago
6 0
Answer:
Y=4-2x

If need step by step please message me! And yes this is the right answer!
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A woman walks due west on the deck of a ship at 3 mi/h. The ship is moving north at a speed of 22 mi/h. Find the speed and direc
Minchanka [31]

Answer: The speed is 22.2 mi/hr and woman is 8° north relative to the surface of the water.

Step-by-step explanation:

Since we have given that

Speed at which woman walks due west = 3 mi/hr

Speed at which ship moving due north = 22 mi/hr

Now it forms "Pythagorus theorem":

So, it becomes,

H^2=B^2+P^2\\\\H^2=3^2+22^2\\\\H^2=9+484\\\\H^2=493\\\\H=\sqrt{493}\\H=22.20\ mi/hr

And the direction of the woman relative to the surface of the water is given by

\theta=\sin^{-1}x(\dfrac{3}{22.2})=7.76\approx 8^\circ

Hence, the speed is 22.2 mi/hr and woman is 8° north relative to the surface of the water.

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A bag contains 2 red marbles, 3 green marbles, and 4 blue marbles.
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0.083333333333 or 8.3%

Step-by-step explanation:

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if you have a 2 digit divisor and a three digit dividend does the quotient always have the same number of digits
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