Answer:
D={3,9}
The numbers are 3 and 9
Step-by-step explanation:
The set A
={,,,,,,,,,}
Let B be the sub set of A containing odd numbers
B={1,3,5,7,9}
Let C be the sub set of A containing multiply of 3
C= {3,6,9}
Now let D be the be the sub set of A containing both odd numbers and multiples of 3
D={3,9}
Answer:
x= -19/7
Step-by-step explanation:
-7x/-7=19/-7
7x/7=19/-7
Y=2x
3x+2y=21
3x+2(2x)=21
3x+4x=21
7x=21
x=3
y=2(3)
y=6
Answer:
x=12.5
Step-by-step explanation:
2x-25=0
Move 25 to the right with addition so you get the 2x by itself:
2x=25
Now divide the 2 to the right to get the x by itself:
x=25/2, which is the same as x=12.5
Answer:
I think that the answer may be B, I am not 100% sure though
