Wednesday, August 01,
2001
Source: NCTM, The Mathematics
Teacher, V. 92, No. 6 (Sept. 1999),
pp. 492-95
Slide No.
19
Algebraic Solution (incomplete)
•
Let x = the number of girls who must leave
the class
•
99 - x
=
98
•
100 – x
100
•
Solve the above proportion.