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keke345
Nov 28, 2011, 03:17 PM
In 3 square miles of a jungle, there are 14 kinds of species. If the whole jungle is 35 square miles, how many kinds of species will you find?

pready
Nov 30, 2011, 08:45 AM
First thing to do is find the number of species per square mile of jungle.

So 14 divided by 3 = X

Now take X times 35 = number of species in 35 miles.

Another way to solve this is:

3/14 = 35/x
Now cross multiply so 3 times X equals 35 times 14, then divide both sides by 3 so that X equals number of species in 35 miles.

Note: Both results should equal the same number of species in 35 miles.