Tracy, Michelle, and Kati take a road trip that is a total of 1000 miles.  Tracy drives 20 miles more than twice Michelle, and Michelle drives 3 times the amount that Katie drives. How many miles does Michelle drive?
Let x represent the number of miles Kati drives
Michelle:3x
Tracy:20+2(3x)=20+6x
Total:x+3x+20+6x=1000
10x+20=1000
10x=980
x=<<98=98>>98 miles
3(98)=<<3*98=294>>294 miles
#### 294