Friday, January 21, 2011

Friday 1/21

Math 7
  Bell Ringer:
  1. How many ratios form a proportion?
  2. Do these ratios form a proportion:  55/100    100/105
  3. I traveled 140 miles and used 4 gallons of gas/ Later, I used 5 gallons of gas traveling 195 miles. Are these rates proportional?

  Homework:
    page 247 #6-8,  11-13,  17-20, 29