Algebra 5-7  Equivalent Formulas

Solve the formula for the given variable.  Show all your work.

1.    A = 1/2 bh; h                2.    P = 2l + 2w; w               3.    A = 2/3 ab; b
 
 
 
 
 
 
 
 

4.    D = rt; r                       5.    T = P(1+ i); i                6.    D = m/v; m
 
 
 
 
 
 
 
 
 

7.    The formula for the velocity of an object is given as V = 1/2 at2, where a
        is the acceleration and t is the time.  Solve this formula for a.
 
 
 

8.   The formula to convert Fahrenheit to Celsius is F =  9/5C +32.
        a.)  Solve this formula for C.

        b.)  Is what you got to part a.) the same as C =  5/9(F - 32)?
              Why or why not?