# Math Help - Oceans

1. ## Oceans

Eighty per cent of tsunamis occur in the Pacific Ocean. Represent the percentage of tsunamis that did not ocur in the Pacific Ocean as a decimal (correct to 3 decimal places)?

Thanks, Chhoeuk

2. Originally Posted by chhoeuk
Eighty per cent of tsunamis occur in the Pacific Ocean. Represent the percentage of tsunamis that did not ocur in the Pacific Ocean as a decimal (correct to 3 decimal places)?

Thanks, Chhoeuk
If 80% of tsunamis occur in the Pacific, then 20% of them did not occur in the Pacific.

Remember, percent is just a fancy word for "out of 100" or "divided by 100"

so 20% = 20/100 = 2/10 = 0.200 to three decimal places