You could get 169 mixtures
Answer:
Step-by-step explanation:
hello :
2x+7y=1
...(*)
y=4x−8...(**)
(4;8) means x= 4 and y= 8
put this values in (*) and(**) :
2(4)+7(8) =1 62=1 false
8=4(4)-8 8=8 true
so :(4;8) is not solution for this system.
Answer:
b
Step-by-step explanation:
K, so
first one, ok, all of them are prime, 5 and 7 and 13 are all prime
2nd one, 24 is not prime
3rd one, 3 and 13 are prime
4th one, 4 is not prime
answe is 1st and 3rd one
