So 3 have no pets, so 25 - 3 = 22 students have a pet.
There are 15 cats and 16 dogs so 15 + 16 = 31.
And then 31 - 22 = 9. The 9 means that 9 students have both pets.
So the probability is 9/25.
Answer:
number of students who have cat and dog
= y
= 9
P( student chosen has a dog and cat )
= 9/25
76.48
Step-by-step explanation:
x= -3 or 4/3
3x²+5x-12 =0
3x²+9x-4x-12=0
3x(x+3) -4(x+3) =0
(3x-4)(x+3)=0
x=-3 or 4/3
Good Luck!
4.80
add them up 4.80 dollars
6-2+4-8 = 4+4-8 = 8-8 = 0
