SOLUTION: I am trying to work from a page called Mathmagical Potions page #7 (1992) Donald M. Peck & The Wild Goose Company). It is called Hotter or Colder. It is using a time line that lo

Algebra ->  Number-Line -> SOLUTION: I am trying to work from a page called Mathmagical Potions page #7 (1992) Donald M. Peck & The Wild Goose Company). It is called Hotter or Colder. It is using a time line that lo      Log On


   



Question 105575: I am trying to work from a page called Mathmagical Potions page #7 (1992) Donald M. Peck & The Wild Goose Company). It is called Hotter or Colder. It is using a time line that looks like a thermometer using #H above 0 and #C below zero. (4H 3H 2H 1H 0 1C 2C 3C etc.) Here is the problem 31C - 49C =__H
Answer by MathLover1(20855) About Me  (Show Source):
You can put this solution on YOUR website!
ans.:
31C+-+49C+=18+H
to understand it, you just make number line where C represents negative numbers and H represents positive numbers:

-31,-30,-29......-1,+0, 1,.....17,18,19.....
if you go from -31 to the right 49units, you will end at the position of the number 18