Answer:
Lana's sister is six.
Step-by-step explanation:
12/2= 6
Lana is two times her sisters age, so you have to divide Lana's age by two.
Step-by-step explanation:
consecutive numbers follow each other thus if the first is x the second will be x+1 e.t.c:
1. x+x+1+x+2+x+3=2
x+x+x+x+1+2+3=2
4x=2-6
4x= -4
x= -1
The numbers are -1, 0, 1 and 2
2.x+x+1+x+2= -6
3x+3=-6
3x= -6-3
3x= -9
x=-3
The numbers are -3,-2 and -1
The answer would be (12, 4).
Since the pattern for this graph is rise: 1 and run: 3, follow that pattern from the last point. From the point (9, 3), using the rise/run pattern would give you (12, 4).
If you expand the left hand side, the inequality becomes
As you can see, appears on both sides, which means that it cancels out. You can subtract from both sides to get
and this is clearly always true. If you interpreted the inequality with words, it would sound like
"For which values of n is 18 greater than 8"
Since the inequality does not depend on n anymore and the remaining part is true (18 is indeed greater than 8), every possible value of n satisfies the inequality.