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PIT_PIT [208]
2 years ago
12

Write the given equation in standard form. −7x−5y=3

Mathematics
1 answer:
lina2011 [118]2 years ago
3 0

Answer:

7x+5y=-3

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
Is the following relation a function? (
PolarNik [594]
No, because there are TWO values of y for a certain value of x

say x=5, then y=2 and y=-2

That does not satisfy the concept of the function.
4 0
3 years ago
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Tourists covered 640 km for a 4 hour ride by car and a 7 hour ride by train. What is the speed of the train, if it is 5 km/h gre
gavmur [86]

Answer:

60 km/h

Step-by-step explanation:

Let us use the x to represent the speed of the car since it is the smaller value.

Then, the distance covered by the car is 4x since was going 4 kph.

The distance covered by the train is (x+5) times 7 or 7x+35.

We know that the total distance covered is 640 km.

Using this information, we can set up the equation 4x+7x+35=640.

By subtracting both sides by 35 and combining the x's, we get a new equation of 11x=605.

After this, we divide both sides by 11 and get x=55.

Lastly, we add 5 to 55 since the train is 5 km faster than the car and that x stood for the car.

Train=60 km/h

5 0
3 years ago
Is how many sixth graders attend your school a statistical question?
HACTEHA [7]
Yes, any question that involves numbers would be a statistical question. 
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3 years ago
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