A cyclist traveled kilometers per hour faster than an in-line skater. In the time it took the cyclist to travel kilometers, the
1 answer:
The speed of skaters was 10 km per hr.
<h3>How to solve? </h3>
Mathematically, the speed of an object is directly proportional to the distance traveled and inversely proportional to the time taken. In simple words, the more the speed, the distance traveled is more in a short period and vice-versa.
Let the speed of the skater be x
We know, speed =
According to the question:
Cross multiplying both sides,
20(x+10) = 40x
20x + 200 = 40x
20x = 200
x = 10
Thus, the speed of skaters was 10 km per hr.
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The potential roots of the function are,
And the accurate root is 3 it can be determined by using rules of the rational root equation.
<h2>Given that,</h2>Function;
Which of the values shown are potential roots of the given equation?
<h3>According to the question,</h3>Potential roots of the polynomial are all possible roots of f(x).
Using rational root theorem test. We will find all the possible or potential roots of the polynomial.
The factor of the term 45 are,
And The factor of 3 are,
All the possible roots are,
Now check for all the rational roots which are possible for the given function,
Therefore, x = 3 is the potential root of the given function.
Hence, The potential roots of the function are, .
For more details about Potential roots refer to the link given below.