To find 10% of 180 you multiply 180 by .1
If you wanted to find 99% of 180 you'd multiply 180 by .99
If you wanted to find 1% of 180 you'd multiply 180 by .01.
Because the problem asks for a ten percent increase we need to find what 10% of 180 is and then because it increases we add this number to 180 to get our answer.
[tex]180 \times .1 = \frac{180}{10} = 18[/tex]
so 10% of 180 is 18.
Now to find the increase like I was saying earlier:
[tex]180 + 18 = 198[/tex]
The answer is 198 turtles came to the beach.
Let me know if you need more help in understanding or if youre confused about something.
