Helen spent $39 on a sweater. She spent
411 of her remaining money on a vest and a blazer, after which half her money was left.
- What fraction of her money did she spend on the sweater?
- The cost of the blazer is 13 the cost of the vest. How much more does the vest cost than the blazer?
Sweater |
Remaining amount |
|
Vest |
Blazer |
Left |
$39 |
4 |
7 |
1x7 |
1x7 |
3 u |
4 u |
7 u |
(a)
The amount of money left is repeated. Make the numerators the same LCM of 1 and 7 is 7.
1x72x7 of total money =
711 of remaining amount
714 of total money =
711 of remaining amount
Fraction of her money that she spent on the sweater
=
SweaterTotal =
314 (b)
Cost of the sweater = 3 u
3 u = 39
1 u = 39 ÷ 3 = 13
Cost of the vest and the blazer
= 4 u
= 4 x 13
= $52
Cost of the blazer = 1 p
Cost of the vest = 3 p
Total cost of the blazer and the vest
= 1 p + 3 p
= 4 p
4 p = 52
1 p = 52 ÷ 4 = 13
Amount that the vest was more than the blazer
= 3 p - 1 p
= 2 p
= 2 x 13
= $26
Answer(s): (a)
314; (b) $26