Question

Elmer has a collection of 300 fossils. Of these, 21%, percent are fossilized snail shells. How many fossilized snail shells does Elmer have?

Answer 1

Elmer have ( 21/100 x 300 ) fossilized snail shells
or, elmer have 63 fossilized snail shells

Hope it'll help you ^_^

Answer 2

Answer:

63 fossilized snail shells

Step-by-step explanation:

To calculate the percentage of a given number:

Step 1: Multiply that number by the percent

In this case:

300 × 21

  = 6300

Step 2 : Divide the product by 100

In this case:

 6300 ÷ 100 = 63

Therefore Elmer had 63 fossilized shells.

⇒ Another way of working this out, is to know what a percentage means.

Percent is derived from the Latin phrase per centum, meaning per every 100. In other words, parts per every 100.

For example; 21% can be written as 21/100

                       5% is written as 5 / 100

                       13% can be written as 13/100

Therefore 21% of 300 in other words is 21/100 of 300

Calculation:

21/100 of 300      ⇒      21/100 × 300 = 6300/100 = 63

                                  = 63 fossilized snail shells.