Cathy spent
19 of her money on textbooks and
19 of her money on a cardigan. If she was left with $21,
- what fraction of her money was not spent?
- how much money did she have at first?
(a)
Fraction of money spent
=
19 +
19=
29Fraction of money left
= 1 -
29=
79(b)
Amount that Cathy had at first = 9 u
Amount that Cathy had left = 7 u
7 u = 21
1 u = 21 ÷ 7 = 3
Amount that she had at first
= 9 u
= 9 x 3
= $27
Answer(s): (a)
79; (b) $27