Chapter 2 IntroduCtIon to VarIables 63

deMYstiFied / algebra deMYstiFied / HuttenMuller / 000-0 / Chapter 2

9. Suppose $20,000 is invested in two mutual funds, Fund A and Fund B. If x repre-
   sents the amount invested in Fund A, how much is invested in Fund B?
   a. x−20 000,
   b. 20 000,
   x
   C. 20 000, −x
   d. there is not enough information to answer this question.


10. Write^12 () 20 xx+−()^91 x−() 1 in lowest terms.

a.^3

59()x+

b.^39

5

()x+

C.^59

31

()

()

x

x

+

+

d.^59

3

()x+

11.^49 x+=^56

a.^415

18

x+

b.^815

18

x+

C.^85

18

x+

d.^2454

15

x+

(^43)
(^1615)
x

a.^5
4
x
b.^64
45
x
C.^4
5 x
d.^4
5
x