Question

a towns population of children increased from 376 to 421 during the past year. which equation shows how to find the percent increase? a $p = \frac{421 - 376}{376}$ b $p = \frac{421 - 376}{421}$ c $p = \frac{376}{421 - 376}$ d $p = \frac{376 + 421}{376}$

Explanation:

Step1: Recall percent increase formula

Percent increase formula is \( p=\frac{\text{New}-\text{Old}}{\text{Old}} \), where New is the new value, Old is the original value.

Step2: Identify New and Old values

Here, Old population is 376, New population is 421. So the increase is \( 421 - 376 \), and we divide by the old value (376). So the equation is \( p=\frac{421 - 376}{376} \), which matches option A.

Answer:

A. \( p = \frac{421 - 376}{376} \)