Name _____________________________   Date ___________

MAT0012C  CHAPTER 8 QUIZ

Show work on the scrap paper and write the solutions on the blank provided.

1. Write each ratio as a fraction in the lowest terms.

    a.  The ratio of 15 to 45.  _________

    b.  The ratio of 7inches to 47 inches.  _________

    c.  The ratio of 8 feet to 4 yards.  _________

    d.  The ratio of 140 to 160.  _________

2.  Find the Unit Rate.

    a.  64 feet in 5 minutes.  _________

    b.  18 beats every 12 seconds. ________

    c.  3000 students over a 16-year period. _________

    d.  250 gifts for  10 children.  ________

3.  Find the Unit Cost.

    a.  $3.50 for 50 feet. _________

    b.  150 barrels costs $4, 950. ________

    c.  Six men donated $272. _______

    d.  A dozen red roses for  $50. __________

4.  Solve the following problems using proportions:

    a.   A 30-pound bag of fertilizer costs &12.25, and an 80-pound bag of fertilizer costs $30.25. 

         Which is a better buy? ____________________________

    b. A car travels 150 miles on 6 gallons of gasoline. How far will it travel on 24 gallons of gasoline? ________

5. Determine whether each equation is a proportion.

6.  Solve each proportion.