Page 65 - MarceAlgebra Demystified

52 CHAPTER 2 Introduction to Variables

(Or x = number of children’s tickets and 450 x ¼ number of adult
tickets)
9. Retail selling price ¼ x
1 x 3 4x 3x 4x 3x x
Sale price ¼ x or x x ¼ ¼ ¼
4 4 4 4 4 4 4
10. Length of the longest piece (in the given units) ¼ x

1
Length of the shortest piece (in the given units) ¼ x
5
1
Length of the mid-length piece (in the given units) ¼ x
2

Chapter Review

3
1. Reduce to lowest terms:
6x
1 x 1 1
ðaÞ ðbÞ ðcÞ ðdÞ
2 2 x 2x
7x
2. Rewrite as a product of a number and a variable:
15
7 7 1 7 7
ðaÞ x ðbÞ ðcÞ þ x ðdÞ x
15 15 x 15 15

x 1
3. ¼
4 3
x 1 3x 4 4x 3
ðaÞ ðbÞ x 1 ðcÞ ðdÞ
12 12 12
4. The length of a square is twice the length of a smaller square. If x
represents the length of the smaller square, then the length of the
larger square is
x 1 2
ðaÞ ðbÞ ðcÞ ðdÞ 2x
2 2x x
10 2x
5. ¼
3 15