Answer: 896
Step-by-step explanation:
Let's use a rule of three here.
Solve for x;
Answer:
It will take him
of a minute to fill the bottle.
Step-by-step explanation:
I'm really not sure this is right but..
we can solve using proportions. Cross-multiply and divide.
Answer:1
Explanation:since the absolute value of -3 is 3 and 4-3=1
Answer:
The probability the student studies Art and
Biology is 0.2143.
Step-by-step explanation:
Denote the events as follows:
A = a students studies Art
B= a students studies Biology
The information provided is:
N = 42
n (An B) = 9
n (A' n B) = 10
n (A' n B') =7
Then the number of students who study Art
but not Biology is:
n(An B') = N -n (An B) -n (A' nB) - n (A'n B')
= 42 - 10 - 7 - 9
= 16
The number of students who study Art but
not Biology is 16.
Compute the probability the student studies
Art and Biology as follows:
P(ANB)
n(ANB)
= 0.2143
Thus, the probability the student studies Art
and Biology is 0.2143.
