On a number line, A is at -3 and B is at 7. What is the coordinate of C, which is 3/5 of the way from A to B?

|-3|+|7|=10. The distance of the 2 numbers is 10, next multiply 3/5 into 10 and you get 6. -3+6 is 3, so the point you will end up on is 3.