Lauren bought a rectangular box that is 6 inches long, 10 inches wide and 4 inches high. she wants to cover it in fabric. the fabric costs $0.25 per square inch. How much will the fabric costs?

Respuesta :

first you'll need to find the area of each side and then add those areas together. 2(6x10)+2(4x6)+2(4x10)= 120+48+80=248 
then you multiply the total area by .25 and get 62. It will cost $62.

The cost of the fabric if it cost $0.25 per square inch is $62

Total surface area of a figure

This is the sum of all the faces of the figure. The surface area of the rectangular box is expressed as:

A = 2(lw + wh + lh)

where:

  • l is the length
  • w is the width
  • h is the height

Given the following parameters

l = 6in

w = 10in

h = 4in

Substitute

A = 2(60 + 40+ 24)
A = 2(124)
A = 248 square in

If the fabric costs $0.25 per square inch, the cost of the fabrix is expressed as:

Cost = 248 * 0.25
Cost of fabric = $62

Hence the cost of the fabric if it cost $0.25 per square inch is $62

Learn more on surface area here: https://brainly.com/question/16519513

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