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Tju [1.3M]
3 years ago
13

Which of the following could be a rational number?

Mathematics
1 answer:
Flura [38]3 years ago
5 0

Answer:

the sum of two irrational numbers

Step-by-step explanation:

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Which two transformations must be applied to the graph of y = ln(x) to result in the graph of y = –ln(x) + 64
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Fill in the table of values for y=2-x<br> X/ -3 0 5<br> Y
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A train travels at a constant speed of 35 feet per second. How many minutes will it take the train to travel exactly 70 miles? (
olga_2 [115]

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3 0
3 years ago
Read 2 more answers
A plane is traveling 600 miles. It takes the plane 5 hours against the wind and 4 hours with the wind. What is the speed of the
madam [21]

Answer: the speed of the plane in still air is 135 miles per hour

the speed of the wind is 15 miles per hour

Step-by-step explanation:

Let x represent the speed of the plane in still air

Let y represent the speed of the wind.

The distance travelled by the plane is 600 miles.

Distance travelled = speed × time

It takes the plane 5 hours against the wind. This means that the total speed is (x-y) miles per hour. Therefore,

600 = 5(x- y) = 5x - 5y - - - - - - - 1

It takes the plane 4 hours with the wind. This means that the total speed is (x+y) miles per hour. Therefore,

600 = 4(x+ y) = 4x + 4y - - - - - - - - 2

Multiplying equation 1 by 4 and equation 2 by 5, it becomes

2400 = 20x - 20y

3000 = 20x + 20y

Adding both equations

5400 = 40x

x = 5400/40 = 135

Substituting x = 135 into equation 1, it becomes

4 × 135 + 4y = 600

540 + 4y = 600

4y = 600 - 540 = 60

y = 60/4 = 15

6 0
3 years ago
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