Question

A gift tag cost m cents. A wrapping paper cost thrice as much. David paid $12 for 7 gift tags and wrapping paper. How much did he pay for the sheets of wrapping paper? Express your answers in terms of m

Answer 1

Amount paid for the sheets of wrapping paper is
`7 * 3m`

Explanation:

Given:

Cost of gift tag = m cents

Cost of wrapping paper = thrice as much as gift tag

Total cost paid for 7 gift tags and wrapping paper = $12

To Find:

Amount paid for the sheets of wrapping paper = ?

Solution

The cost of gift bag = m

The cost of wrapping paper = 3m

Now the cost of 7 gift bags and wrapping paper is $12
`(7 * =>\text{cost of one gift bag})+ (7 * \text{cost of one wrapping paper} )= 12`

=>7m + 7(3m) = 12

=>7m +21m =12

=>28m = 12

=>
`m = (12)/(28)`

=> m = 0.428 cents

Now the cost of one wrapping paper

=> 3m

=> 3(0.428)

=>1.284 cents

Cost of 7 wrapping paper

=>
`7 * 3m`

=> 7 X 1.284

=>8.988

=>9 cents