A moving company charges a flat rate of $75 plus and additional $0.19 per mile driven. Which inequality correctly represents how
2 answers:
For this case, the first thing we must do is define a variable.
We have then:
x: number of miles.
By the time the company earns at least $ 100 we have the following inequality:
From here, we clear the value of x.
We have then:
Answer:
the company must drive to earn at least $ 100 more than or equal to 132 miles
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Answer:
Step-by-step explanation:
- this can be done by simple manipulation .
- in the given equation, A is the subject.
- so, by the above statement you can understand the meaning of making something as a subject.
- given equation: A = 1/2 bh
- multiply both the sides by 2,
2A = bh
- divide both the sides by h,
so, the required form is :
You can find counterexamples to disprove this claim. We have positive integers that are perfect square numbers; when we take the square root of those numbers, we get an integer.
For example, the square root of 1 is 1, which is an integer. So if y = 1, then the denominator becomes an integer and thus we get a quotient of two integers (since x is also defined to be an integer), the definition of a rational number.
Example: x = 2, y = 1 ends up with which is rational. This goes against the claim that
is always irrational for positive integers x and y.
Any integer y that is a perfect square will work to disprove this claim, e.g. y = 1, y = 4, y= 9, y = 16. So it is not always irrational.