Question

Please help.... I don’t understand

Answer 1

$5

Explanation:

Set up a system of equations

let b be the cost of a bow

let w be the cost of a roll of wrapping paper

This means that

`5b + w = 10\\b + w = 6`

Subtract the two equations

`5b + w = 10\\- (b + w = 6)\\4b = 4\\b = 1`

Plug this into the equation b + w = 6

1 + w = 6

w = 5.

This means the cost of a bow is $1 and the cost of a roll of wrapping paper is $5.