Name _____________________________  Date ___________

MAT 0012C  CHAPTER 3 QUIZ

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

1. Translate each phrase into a mathematical statement.

    a.  16 less than a number.            __________

    b.  The product of a number and 3 increased by 5.        __________

    c.  Two times the difference of a number and 10.           __________

    d.  The cost c split five equal ways.        _________

    e.  35 divided by r.  __________

2.  Write an expression for each case.

    a.  How many seconds are there in "m" minutes?        _________

    b.  If a man sleeps "x" hours a day, how many hours does he sleep in a  

         year?     ________

    c.  A rope is "f" feet long, what is its length in inches? _______

3.  Evaluate each expression for the given values.

    a.  -2x + 6   for x = -6        _________

    b.  b² - 4ac  for a = -1, b = 3, c = -5        __________

    c.   ( 6 - a ) ÷ ( 1 + a)  for a = -2     _________

    d.  2t²- 3( s - t)  for  s = 4, t = -2      ________

4.  Simplify each expression by combining like terms.

    a.  -6y + 3x - 10x + 8y =_____________

    b.  -5a(-4b) = ____________

    c.  3x + 8y - 10z - 5x + 2y + 10z = ___________

    d.  2( 3r - 2) - 5( 4 - 2r) = ___________

5.  Solve the equations.

    a.  3x - 2x = -8              _____________

    b.  5( y - 15) = 0            _____________

    c.  15 = 5b + 1 + 2b       _____________

6.  A meat locker lowers the temperature of of a product 7^° Fahrenheit every hour.  If placed in the locker, how long would it take freshly ground hamburger to go from 71^° F to 29^° F?  _______________