Answer:
The answer is 720 ways.
Step-by-step explanation:
Total friends who volunteered = 10
Total number of jobs that have to be done = 3
Here order matters, so it is a permutation question.
We can use the formula nPr.
= 
= 720 ways.
The second way to solve this is:
Susan can choose the first person to do a job in 10 ways
Then the second job can be done in 9 ways and the third in 8 ways.
Total becomes = 
ways
Answer:
q = 
Step-by-step explanation:
Given
t = 
+ 
Multiply through by pq to clear the fractions
tpq = q + p ( subtract q from both sides )
tpq - q = p ← factor out q from each term on the left side
q(tp - 1) = p ← divide both sides by (tp - 1)
q =
Answer: x=-1
Step-by-step explanation:
8-3x-x=12
-3x-x=-4x
8-4x=12
-8 -8
-4x=4
-4x/-4=4/-4
x=-1
Answer:
I am going to say complementary.
Please correct me If I am wrong
Step-by-step explanation:
