Answer:
Step-by-step explanation:
x²+7=43x
x²-43x+7=0

Answer:
16 : 28
Step-by-step explanation:
If 12 out of the 28 pupils are female, we can calculate the number of males by subtracting the number of females from the total number of pupils.
28 - 12 = 16
So, there are 16 males in the class. Now, we know that the ratio of males : total is 16 : 28.
I hope this helps! Have a lovely day!! :)
(brainliest is much appreciated!!)
Answer:
Step-by-step explanation:
Answer: 3.845312455 just put it in a scientific calculator