Question

A circular gift has a 4.75 inch radius. alyssa wants to wrap a ribbon that costs $0.50 per inch around the gift. How much money will she spend?

Answer 1

The Alyssa will spend $14.915 for wrap a ribbon around the gift, if a ribbon costs $0.50 per inch.

Explanation:

The given is,

A circular gift has a 4.75 inch radius

Ribbon that costs $0.50 per inch

Step:1

Formula to calculate the perimeter of circle,

`Perimeter, P = 2\pi r`......................(1)

Where, r - Radius of circle

From the given,

r = 4.75 inches

Equation (1) becomes,

`P = 2 (\pi )(4.75)`

`= 2(3.14)(4.75)` (∵
`\pi`= 3.14)

`=2(14.915)`

`=29.83`

Perimeter, P = 29.83 inches

Step:2

Cost for wrap the ribbon to around the circular gift,

= Perimeter of circular gift × ribbon cost per inch

= (29.83 × 0.50)

= $14.915

Cost for wrap the ribbon to around the circular gift = $14.915

Result:

The Alyssa will spend $14.915 for wrap a ribbon around the gift, if a ribbon costs $0.50 per inch.