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ella [17]
3 years ago
15

The plane flies 725 miles per hour. how many minutes will it take to fly 150 miles

Mathematics
1 answer:
ioda3 years ago
3 0

Answer:

12.41 minutes.

Step-by-step explanation:

It is given in the question that a plane can fly 725 miles per hour.

So, the plane goes 725 miles in 1 hour i.e. 60 minutes.

Now, we have to find the time the plane takes to fly 150 miles.

As the plane is flying at a constant rate, so we can use the unitary method to get the required time.

Therefore, the plane will take \frac{60 \times 150}{725} = 12.41 minutes to fly 150 miles. (Answer)

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Applying the estimated Regression Equation

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b2 = ((SPX2Y)*(SSX1)-(SPX1X2)*(SPX1Y)) / ((SSX1)*(SSX2)-(SPX1X2)*(SPX1X2)) = 196481.5/635355.88 = 0.30925

a = MY - b1MX1 - b2MX2 = 149.25 - (0.94*61.31) - (0.31*193.88) = 31.73252

y = 0.939X1 + 0.309X2 + 31.733

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y = (0.93884*39) + (0.30925*143) + 31.73252= 112.569

where

Sum of X1 = 981

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Mean X1 = 61.3125

Mean X2 = 193.875

Mean Y = 149.25

attached is the Tabular calculation of the required values needed for estimated regression equation

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