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2 years ago

5. What is M (3x - 24) (42+11)

Mathematics

1 answer:

Lelechka [254]2 years ago

4 0

Answer:

(3x - 24)

(42+11)

Step-by-step explanation:

(3x - 24)

(42+11)

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For the relation S:{(2,3),(−1,4), (1,6)}. a Find the domain. B. Find range

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Answer:

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Step-by-step explanation:

In the relation of the form (x,y)

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Relation given in the problem

S:{(2,3),(−1,4), (1,6)}

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A plane averaged 800 mph on a trip going east, but only 400 mph on the return trip. The total flying time in both directions wa

galina1969 [7]

Answer:

1200 miles.

Step-by-step explanation:

Let d represent one way distance.

We have been given that a plane averaged 800 mph on a trip going east, but only 400 mph on the return trip.

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

The time taken while going east would be $\frac{d}{800}$ .

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$\frac{d}{800}+\frac{d}{400}=4.5$

Make a common denominator:

$\frac{d}{800}+\frac{d*2}{400*2}=4.5$

$\frac{d}{800}+\frac{2d}{800}=4.5$

$\frac{d+2d}{800}=4.5$

$\frac{3d}{800}=4.5$

$\frac{3d}{800}\times \frac{800}{3}=4.5\times \frac{800}{3}$

$d=1.5\times \frac{800}{1}$

$d=1200$

Therefore, the one-way distance was 1200 miles.

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2 years ago