The water level in Rick Lake changes at an average of - 7/16 inch every 3 years.

Based on the rate above, how much will the water level change after one year? Show your calculations and model your answer on the vertical number line, using 0 as the original water level.

-7/48

Step-by-step explanation:

Ok, so if there is a change of - 7/16 inches every 3 years, then you just basically have to divide - 7/16 inches by 3. And since you can't divide fraction and only multiply the reciprocal of a fraction you would say - 7/16 * 1/3 = - 7/48. If you want to mark it on a number line, you would basically just find - 7/16 and divide the distance from 0 to - 7/16 into 3 portions and mark the 1st third of the distance your answer.