Page 15 - Math Course 1 (Book 2)
P. 15

The Language of Algebra





                Write an algebraic expression for 9 plus the       Write an algebraic expression for the difference of
                product of 2 and the number d.                     6 and 4 times a number x.

                Plus implies add, and product implies multiply.    A. 6 – 4x
                                                                   B. (6 – 4)x
                   9          plus    the product of 2 and the number d  C. 6 + 4x
                                                                   D. 6x – 4

                   9             +                             2d    Answer



                    Answer     the expression can be written as
                                          9 + 2d.
                                                                   Write an algebraic expression for one half the size
                                                                   of the original perimeter p.
                Write an algebraic expression for two thirds of the
                original volume v.                                 A. 2p

                                                                      1
                The word of implies multiply.                      B.      p
                                                                      2
                two thirds      of    the original volume v        C.  p 2

                                                                   D. p 1/2
                       2/3        x                     v

                                The expression can be written        Answer
                                             2
                    Answer                as      v.
                                             3
                                                                   Write an algebraic expression for the product of 6
                Write an algebraic expression for the product of         and x to the f fth power.
                  3
                       and a to the seventh power.
                  4                                                A. 6x  5
                The word product implies multiplication.
                                                                   B. 30x
                the product of       ¾            a to the seventh power
                                                                   C. 6(5x)

                                         ¾      x           a7     D. 5x  6


                                The expression can be written        Answer
                                            3
                    Answer                as     a .
                                               7
                                            4



                Your Turn!


               Write Algebraic Expression
                Write an algebraic expression for nine more than a number h.


                A. 9 – h
                B. 9h
                C. 9 + h
                D. h – 9


                   Answer

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