Question

Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then.

Find Ralph's age now.

Answer 1

6
12
18
24

Answer 2

3r=s
6+2r=s

r=6, s=18

Answer 3

where r=ralph and s= sarah

Answer 4

The slope of a line is -1/3 .

Find the slope of a line that is perpendicular to this line.

Answer 5

-3
3
1/3

Answer 6

you need to find the inverse so (-1/3)x=1, x=-3