Final answer:
The total precipitation for March and April was 546 inches below the average when combining the 434 inches below average for March with the 112 inches below average for April.
Step-by-step explanation:
The question is asking how many inches below the average was the precipitation for both March and April combined. To calculate the total amount below average, we simply need to add the amounts for each month.
For March, the precipitation was 434 inches less than the average. For April, it was 112 inches less than the average. To find out how much less precipitation there was for both March and April, we add these two numbers together.
Calculation:
March below average = 434 inches
April below average = 112 inches
Total below average = March below average + April below average
Total below average = 546 inches below average
Thus, the total precipitation for March and April combined was 546 inches less than the average.