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Photographer

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AVG. SALARY

$42,120

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EDUCATION

1-2 years post-secondary training

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JOB OUTLOOK

Stable

Real-Life Activities

Real-Life Math -- Solution

You're trying to determine how many compressed files you'll have to make, keeping in mind that each file can be no larger than 10 megabytes.

Each compressed photo is 3/4 of a megabyte, or 0.75 megabytes.

You'll need to divide 10 by 0.75 to determine the number of photos that will fit into one compressed file:

10 / 0.75 = 13.33 (or 13 whole photos)

Therefore, 0.75 X 13 = 9.75 (you can fit 13 photos in a compressed file that will be 9.75 megabytes)

Next, you'll need to divide 210 photos by 13 to see how many compressed files there will be:

210/13 = 16.15 (16 compressed files with 13 photos each and 1 compressed file with 2 photos)

You can fit 13 photos in a compressed file that is only 9.75 megabytes. Each compressed photo is 3/4 of a megabyte (or 0.75 of a megabyte). Uncompressed, each photo is 2.5 megabytes, so this is quite a space saver.

You will have to make 17 zip files. 16 files will contain the full 13 photos, and the last file will contain only 2 photos.

The person on the other end can "unzip" the files, and the photos will be back to their regular size!

"Numbers play a pivotal role in photography," says freelance photographer Jesse Winter Heading. "From balancing exposures by manipulating ISO with shutter speed and aperture to achieve the same exposure with different results, to setting up your lighting ratios and ensuring that your rim or hair light is doing what you're wanting it to do -- before you even look at the back of your camera."


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