Answer:
See below
Step-by-step explanation:
We can make a the number of days and y the number of workers
Since we were told there is an inverse relationship between the days required to build the house and the number of workers required, then,
The equation would be
y = k/x
Here, y is inversely proportional to x and k is the constant proportionality
So, out required equation would be
a = k/n
Fixing the values, we'll have
55 = k/8
k = 55 × 8
k = 440
The number of days required to build a similar house with 5 workers will now be
= 440/5
= 88 days
Answer:
It is rational as a rational number is a number written in a p/q form where p and q are integers and q is not equal to 0. Ex:45/7,5/1 and 5=5/1
Answer:
Positive real numbers
Step-by-step explanation:
The domain is all the possible values of x. Here, x represents the time that the ball falls.
Natural numbers are integers greater than 0 (1, 2, 3, etc.). However, the time doesn't have to be an integer (for example, x=1.5).
Positive integers are the same as natural numbers.
Positive rational numbers are numbers greater than 0 that can be written as a ratio of integers (1/1, 3/2, 2/1, etc.). However, the time can also be irrational (for example, x=√2).
Positive real numbers are numbers greater than 0 and not imaginary (don't contain √-1). This is the correct domain of the function.
