- #1

ryty

- 30

- 0

## Homework Statement

In a pig-calling contest, a caller produces a sound with an intensity level of 90 dB. How many such callers would be required to reach the pain level of 120 dB?

## Homework Equations

i don't know

## The Attempt at a Solution

The way I understood it from my book, for every multiple of ten increase in decibels, you have to multiply by that number, so i multiplied 1 by 3, to get 3, but that isn't right.