Answer:
15 minutes
Step-by-step explanation:
The formula is
1/a + 1/b = 1/c to determine joint time where a and b are the times alone and c is the time together
1/10 + 1/ 30 = 1/c
Multiply each side by 30c to clear the fractions
30c( 1/10 + 1/ 30) = 1/c * 30c
3c + c = 30
4c = 30
Divide by 4
4c/4 = 30/4
c = 7.5 minutes
This is the time for 50 pages
We want 100 pages, so multiply by 2
7.5 *2 = 15 minutes
The answer is to 10-5=2/3 =17/3
Answer:
56
Step-by-step explanation:
b + a is 90 degrees.
90 plus 90 plus 124 is 304
360 - 304 is 56
<u>Complete Question</u>
The probability distribution table is given below:
Answer:
1.61
Step-by-step explanation:
The probability distribution table is given below:
We want to determine the mean number of times a person gave blood.
Expected Value,
The mean number of times a person gave blood based on this survey is 1.61.
Answer: 1232 pieces
Work Shown:
1 bag = 7 apples
22 bags = 22*7 = 154 apples
So we have 154 apples to work with in total.
Each of those apples is cut into 8 pieces, giving us 8*154 = 1232 pieces
We can write it as one single calculation to say 22*7*8 = 1232