We must first solve the number of fiction and nonfiction books
if x is the number of fiction books and
y is the number of nonfinction books
Then,
x + y = 400
x = y + 40
Solving the system of equations:
x = 220
y = 180
Therefore, the probability that Audrey and Ryan will get both nonfiction books is
P = 180/400 + 179/399
P = 0.8986
Answer:
B, 13.5
Step-by-step explanation:
Formula used is SA=4s^2
726= 4s^2
181.5= s^2
13.47=s
13.5~ s
Answer:
8
Step-by-step explanation:
x=-1 so -(-1)+7=y
1+7=y
8=y
That would be 5.333333 reapeating