SOLUTIONS TO EXERCISES, LESSON 1
1.
b
(para 1-2)
2.
d
(para 1-2)
3.
b
(para 1-2; table 1-1)
4.
c
(para 1-7)
3
=
X
5
10
5X = 3 10
5X
= 30
5
5
X = 6
5.
d
(para 1-7)
1/2
= 0.6
30
X
1/2 X = 0.6 30
1/2X
=
18
1/2
1/2
X = (18/1 1/2) = (18/1 2/1) = 36
6.
d
(para 1-7)
0.8 = 5
2
X
= 25
0.8 X
0.8X = 10
0.8
0.8
X = 12.5
MD0913
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