Answer:
19/37
Step-by-step explanation:
The mathematics faculty at a college consists of 9 professors, 8 associate professors, 10 assistant professors, and 10 instructors. If one faculty member is randomly selected, find the probability of choosing a professor or an instructor
Total number of people in the faculty =
9 professors + 8 associate professors+ 10 assistant professors+ 10 instructors
= 37 people
Hence,
The probability of choosing a professor or an instructor
= P( Professor) + P( Instructor)
= 9/37 + 10/37
= 19/37
Answer:
f^-1(x)=x/2+1
Step-by-step explanation:
Answer:
Cost without vat is 1,368.5
Step-by-step explanation:
Here, we want to know the cost of the iron without the vat.
From the question , we can see that 15% VAT brought the cost to 1610.
This means that the original cost without vat is 100% -15% = 85% of the total
Thus;
85/100 * 1610 is the cost without vat
And that is;
136850/100 = 1,368.5
Answer:
x is 11 degree
Step-by-step explanation:
35+5x=90
5x=90-35
5x=55
x=11
this answer is found by linear equation method
4a^2+7ab-b^2
Step-by-step explanation:
Add the first two equations together:
3a^2-ab-2b^2
+ 2a^2+5ab-3b^2
---------------------------
5a^2+4ab-5b^2
Subtract that answer from the remaining trinomial:
5a^2+4ab-5b^2
- a^2-3ab-4b^2
--------------------------
4a^2+7ab-b^2
