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dangina [55]
3 years ago
6

Which of the following statements contain a variable? Check all that apply.

Mathematics
2 answers:
shepuryov [24]3 years ago
5 0
A. The number of different colors on the page - is the statement that contains a variable.

The rest are all fixed values. 27 points. 80 miles per hour. half the speed of the car.


WARRIOR [948]3 years ago
5 0
The <u>correct answers</u> are:

A) the number of different colors on the page; and 
D) half the speed of the car.

Explanation:

A variable represents an unknown amount.  

For A, we do not know how many colors are on the page; this means we would use a variable to represent it.

For D, while we know we want half of the speed of the car, we do not know what the speed of the car actually is; therefore we would use a variable to represent it.
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Answer:

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Step-by-step explanation:

This is usually not too difficult if you write the equation as y = f(x), then swap x and y and solve for y.

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... f⁻¹(4) = 2·4 - 8 = 0

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