Least common denominator is 15, so if you write them both with the denominator 4/5 is 12/15 and 1/3 is 5/15.
233.3333333. and you cant sell .333 of a book so 234 books
L = W+4
A = L x W
A = w + 4 x w
A = w² +4w
There are 22 roses in the vase
probability of first selecting a red rose = 8/22 = 4/11
P( second one is red) = 7/21 = 1/3
these probabilities are multiplied because the individual picks are independent
so the answer is 4/11 * 1/4 = 4/33
Let
y-------> number of books read during the month
x------> number of picture of a book
we know that
in this problem
for
calculate y
therefore
the answer is
The number of books read during the month is