Question

it takes 3.5 minutes to upload 12 photographs from a smartphone to a computer and then an additional 1.25 minutes to upload the photographs to a website. At this rate, about how long will it take to upload 20 photographs from a smart phone to a computer and then to a website?

Answer 1

The answere is simple.All yyou have to do is sum up the time required to upload aphoto frim a phone to a website.Then find the time it takes to upload ten photos and multiply it by 2.

Answer 2

Answer:

8 minutes.

Step-by-step explanation:

Time taken to upload 12 photographs from a smartphone to a computer = 3.5 minutes

Time taken to upload that 12 photographs from computer to a website = 1.25 minutes.

∵ The time taken for 12 photographs to upload from smartphone to a computer then to a  website = 3.5 + 1.25 = 4.75 minutes.

∴ The time taken for 1 photograph to upload to a website = $\frac{4.75}{12}$

∴ Time taken to upload 20 photographs from a smartphone to a computer then to a website =  $\frac{4.75}{12}\times 20$

                             = 7.916 ≈ 8 minutes.

It will take 8 minutes to upload 20 photographs.