Answer:
3 patients had all the three complaints
Step-by-step explanation:
Let U be the set of patients who reported at the hospital on that day
Let F be the set of patients who complained of fever
Let S be the set of patients who had stomach troubles
Let I be the set of injured patients
Then the given data can be written as:
- n(U) = n(F∪S∪I) = 100
- n(F) = 70
- n(S) = 50
- n(I) = 30
- n(F∩S) + n(S∩I) + n(I∩F) - 3×n(F∩S∩I) = 44
n(F∩S∩I) = ?
Using the formula for the cardinal number of union of three sets:
n(F∪S∪I) = n(F) + n(S) + n(I) - n(F∩S) - n(S∩I) - n(I∩F) + n(F∩S∩I)
100 = 70 + 50 + 30 - (44 + 3×n(F∩S∩I)) + n(F∩S∩I)
100 = 150 - 44 - 2×n(F∩S∩I)
2×n(F∩S∩I) = 106 - 100 = 6
<u>n(F∩S∩I) = 3</u>
Answer:
b
Step-by-step explanation:
Answer:
yes, because when you "raise a number to power" you're multiplying the number by itself, and the power represents how many times you do so.
I hope this answers your question
Answer:
The original price of computer is $ 1040
Solution:
Given that, Mason used a 30% coupon to buy a new computer
After the discount, the cost of the computer was $728
To find: original price of computer
From given question,
price after discount = $ 728
discount = 30 % of original price
Let "x" be the original price of computer
price after discount = original price - discount price
Step-by-step explanation:
