1). 9/20. 2). -4/7. 3). 15/36. 4). 25/30. 5). 3/5x
Answer:
they are 16 and 4
Step-by-step explanation:
We can call the numbers x and y and we can write:
x - y = 12
x + y = 20
Adding these equations gives us 2x = 32 which means x = 16 and substituting this value into the first equation gives us y = 4.
It would be a 50/50 chance that all of them would be girls
Answer:
86
Step-by-step explanation:
=> 
=> 
=> 
=> 
=> 86