Question

1. el pluviómetro de jerome mostró que el mes pasado cayeron $3\frac{9}{10}$ centímetros de lluvia. este mes, el pluviómetro midió $5\frac{3}{10}$ centímetros. ¿qué ecuación puede usarse para hallar ( l ), cuántos centímetros de lluvia más que el mes pasado cayeron este mes?

a ( l = 5\frac{3}{10} + 3\frac{9}{10} )
b ( l = 5\frac{3}{10} + 3\frac{6}{10} )
c ( l = 5\frac{3}{10} - 3\frac{6}{10} )
d ( l = 5\frac{3}{10} - 3\frac{9}{10} )
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Explanation:

Step1: Understand the problem

We need to find the equation to calculate how many more centimeters of rain fell this month than last month. Let \( l \) be the difference in rainfall.

Step2: Recall the formula for difference

To find how much more one quantity is than another, we subtract the smaller quantity from the larger one.

Last month's rainfall: \( 3\frac{9}{10} \) cm
This month's rainfall: \( 5\frac{3}{10} \) cm

Since \( 5\frac{3}{10} > 3\frac{9}{10} \), the difference \( l \) is calculated as \( l = 5\frac{3}{10}-3\frac{9}{10} \).

Answer:

D. \( l = 5\frac{3}{10}-3\frac{9}{10} \)