<span>Krystal's rate = 1 floor in 16 min. = 1/16 floors per min.
Working together their rate = 1 floor in 5.76 min. = 1/5.76 floors per min.
We need to determine Perry's rate, so we need to equate their combined rate with the sum of the individual rates.
Let Perry's time = x
In equation form, we can write:
1/16 + 1/x = 1/5.76
Solve for x:
(x+16)/16x = 1/5.76 -> 5.76(x+16) = 16x -> 10.24x = 92.16 -> x = 9
So, Perry would take 9 mins. to do the floor alone.
I hope this helped!
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8: 20
9: 90
I am so sorry if this is wrong. I am not good at this type of things
the 5 is in the hundreds place, the 7 is in the tens place and the 2 is in the ones place
Answer:
0
Step-by-step explanation:
The only possible outcomes on the die are 1,2,3,4,5,6.
Since 7 is not in the possible outcome list, It is impossible to obtain a 7 on this 6-sided die.
If the question <em>had </em>asked for the probability of other values, it would have been 1/6, because you can get each number at least once every 6 rolls. This, however varies in terms of experimental probability
Hope this helps
