Answer:

Step-by-step explanation:
Given
Peter hits
Mary hits
Required
The probability that Mary wins
From the question, we understand that Peter throws the first.
If Mary is to win, then Peter has to lose his throw
Using the complement rule, the probability that Peter misses is:

So, the probability that Mary wins is:

This gives:

Well a long number 1.0989010989011 thats what u get
Answer:
y=-x-4
Step-by-step explanation:
It is already simplified, three goes into three once but three cant go into 32 without there being a remainder.
Answer:
x=10
Step-by-step explanation:
Make 2x the only variable on the left side of the equation. Do that by taking 3 and 5 to the left. Note: if you move/transpose any number the sign must change.
2x = 18+5-3
2x=20
Divide both sides of the equation by 2 to make x the only variable left.
x=10