A pencil cost $3.50. A notebook cost $13.50 more than the pencil. Natalie spent $96 on such pencils and notebooks. She bought twice as many pencils as notebooks.
- How many notebooks did Natalie buy?
- How much money did Natalie spend on the pencils?
|
Pencils |
Notebooks |
Total |
Number |
2 u |
1 u |
|
Value |
3.50 |
17 |
|
Total value |
7 u |
17 u |
96 |
(a)
Cost of a notebook
= 13.50 + 3.50
= $17
Total cost of pencils and notebooks
= 7 u + 17 u
= 24 u
24 u = 96
1 u = 96 ÷ 24 = 4
Number of notebooks that Natalie bought
= 1 u
= 4
(b)
Amount that Natalie spent on pencils
= 7 u
= 7 x 4
= $28
Answer(s): (a) 4; (b) $28