# I organized an ocean cleanup and we collected a total of 25 pounds of garbage.16 pounds of garbage consisted of plastic.What percent of the garbage was plastic?

##### 2 Answers

The answer is

#### Explanation:

In order to find out the percentage from a situation, we must set up two ratios.

is the equation you will have to use to find the percentage of how much is made out of plastic. The first way is to use cross-multiply. Meaning you will have to multiply

The second way to see if it's correct is by dividing

64%

#### Explanation:

Percentage can be written in two ways. Although they look different they both mean the same thing.

Example: 30 percent

Percentage really is a special fraction. What makes it special is that the bottom number (denominator) is ALWAYS 100.

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All the plastic collected weighed 25 pounds

Of this there was 16 pound of plastic

The amount of plastic expressed as a fraction of the whole is

We need to change this to percentage so the bottom number (denominator) has to end up as being 100.

Multiply by 1 and you do not change the value. However, 1 comes in many forms.

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Think of this as

Think of % as being the same as

So