Question

Scientific notation is a common way of writing very large numbers. In everyday life we see this when dealing with cell phone storage. If a phone has 10 gigabytes of hard drive space that means that it has 10×10^{9} bytes of space. A megabyte is 1×10^{6} bytes.

- If our phone with 10 gigabytes of free storage downloads a game that takes of 76 megabytes, how much free storage is left?

Step 1

Storage space of the phone = 10 gigabytes = 10^{4} megabytes.

Size of the game = 76 megabytes.

Step 2

Free storage of the phone after the game is downloaded = Storage space – Size of the game

= 104 megabytes - 76 megabytes

= 10000 megabytes - 76 megabyte

...

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