Posted by jake on Wednesday, September 21, 2011 at 7:27pm.
One day we decided to drive from Town A to Town D. In order to get there we had to drive through Town B and then Town C. It is 10 miles farther from Town A to Town B than it is from Town B to C. IT is 10 miles farther from Town B to Town C than it is from Town C to Town D. It is 330 miles from Town A to Town D. How far is it from Town A to Town B?

math  cody, Wednesday, September 21, 2011 at 7:39pm
let the distance from c > d be x
if b > c is ten miles farther than x, then let that distance be x+10
same for a > b. it is 10 further than
b > c (x+10), so it would be x+10+10, or x+20
so look at it like so:
a x+20>bx+10>cx>d
the total distance is (x+20)+(x+10)+x = 330, or 3x+30=330
30 30
3x=300
divede by 3, and x=100 miles.
to get a>b, u do 100+20=120 miles

math  cody, Wednesday, September 21, 2011 at 7:43pm
the 30 30 was subtract 30 from both sides. it lined up in the box but not when posted _
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