For this case, the first thing we must do is define variables.
We have then:
x: number of hours
y: total rental charge
The equation modeling the problem is given by:
From here, we observe that the relation between both variables is proportional, being the constant of proportionality equal to $ 10 per hour.
Answer:
The rental charge is proportional to the number of hours you rent the bicycle:
Given:
To find:
The .
Solution:
In circle B, is central angle and
is inscribed angle from two points A and C.
According to central angle theorem, central angle is always twice of inscribed angle.
[Central angle theorem]
Divide both sides by 2.
Therefore, .
Answer:
They can make 10 different groups of three.
Step-by-step explanation:
The order in which the people are in the car is not important, so we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
How many different groups of three can the five of them make?
Combinations of 3 from a set of 5. So
They can make 10 different groups of three.