Helen spent $105 on a sweater. She spent
211 of her remaining money on a jacket and a shirt, after which half her money was left.
- What fraction of her money did she spend on the sweater?
- The cost of the shirt is 15 the cost of the jacket. How much more does the jacket cost than the shirt?
Sweater |
Remaining amount |
|
Jacket |
Shirt |
Left |
$105 |
2 |
9 |
1x9 |
1x9 |
7 u |
2 u |
9 u |
(a)
The amount of money left is repeated. Make the numerators the same LCM of 1 and 9 is 9.
1x92x9 of total money =
911 of remaining amount
918 of total money =
911 of remaining amount
Fraction of her money that she spent on the sweater
=
SweaterTotal =
718 (b)
Cost of the sweater = 7 u
7 u = 105
1 u = 105 ÷ 7 = 15
Cost of the jacket and the shirt
= 2 u
= 2 x 15
= $30
Cost of the shirt = 1 p
Cost of the jacket = 5 p
Total cost of the shirt and the jacket
= 1 p + 5 p
= 6 p
6 p = 30
1 p = 30 ÷ 6 = 5
Amount that the jacket was more than the shirt
= 5 p - 1 p
= 4 p
= 4 x 5
= $20
Answer(s): (a)
718; (b) $20