Posted by Melissa on Wednesday, September 10, 2008 at 7:42am.
Am I doing this right?
Q. 6 toy cars are in 16in
16 divided by 6=2.66 cars p/in
How many in 64in = 64x2.66=24 cars
40in = 40x 2.66= 15 cars
104" = 104 x 2.66= 39cars

Math  bobpursley, Wednesday, September 10, 2008 at 8:03am
no. 16in/6 cars gives units of inches per car, not cars per inch.
How many in 64 inches?
64inches* 6cars/16inches = notice how the units inches divide out, and leaves the unit cars....