D
Because if you can do live by that you can do that bye-bye
Answer: 108 rooms
Step-by-step explanation: To solve this problem, we can set up a proportion. In the numerator of our first fraction, we will have the number of rooms Robin can clean and in the denominator, we have the time it takes him to clean 72 rooms which is 6 days.
In our second fraction, we don’t know how many rooms he can clean in 9 days. In fact, that’s what the problem is asking. Since we don’t know how many rooms Robin can clean in 9 days, we can put a variable in the numerator is our fraction. A variable is a letter that represents any number. I will use the variable “x” in this problem. In the position of the denominator, we have the time it takes him to clean X rooms which is 9 days.
Solving from here, we can use cross products so we multiply diagonally.
We have 72 rooms over 6 days equals X rooms over 9 days or 648 = 6x.
Solving from here, divide both sides by 6 and we find that x is equal to 108 which means that Robin can clean 108 rooms in 9 days.
Answer:
see below
Step-by-step explanation:
The term -2t suggests that there are "t" of something that costs $2, or there are 2 of something that costs "t" dollars. The options marked include both interpretations.
Answer:
Step-by-step explanation:
To calculate the 99th percentile you must order scores from least to greatest, and the one that occupies the position that corresponds to 99% of n-scores is the 99th percentile.
The 99th percentile of a set of observations ( in this case, exam scores) is a value such that 99% of the observations are less than or equal to him and the remaining 1% is greater than or equal to him.
If he is now in the 84% is because there are some people that took the exam in February that are better than him, they had better scores and then, 84% of the observations are less than or equal to him and the remaining 16% is greater than or equal to him.
Before there were only 1% scores that were better than his or her score. Now, there are 16% scores that are better, then people got better scores in the February exam, compared to your friend's score.
Answer:
y = 10x
(x is a set of odd numbers between 11 and 99)
Step-by-step explanation:
Given;
divisor = 20
remainder, = 10
let the 3 - digits dividend = y
let the quotient = x
Arranging all in mixed fraction;
where x = 11, 13, 15, 17, 19 - - - - - - - 99
