Algebraic Expressions

SECTION 2.2. ALGEBRAIC EXPRESSIONS

Let's look at two more examples:

8/21,463 = x/100,000
8 * 100,000 = 21,463x
21,463x = 800,000
x = 37.27

so...

8/21,463 = 37.27/100,000

Remember, if this were something like case/population size, we would want to avoid fractions of people, so we might write it like this:

3727/10,000,000

Here's the second example:

0.53/73 = x/100,000
73x = 0.53 * 100,000
73x = 53,000
x = 726

so...

0.53/73 = 726/100,000

This method works just as well if you want a different denominator. Here's an example:

1/8 = x/60
8x = 60
x = 7.5

so...

1/8 = 7.5/60

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