Question

name
lesson quiz
3-4

1. a towns population of children increased from 376 to 421 during the past year. which equation shows how to find the percent increase? solve.

a. $p=\frac{421-376}{376}$
b. $p=\frac{421-376}{421}$
c. $p=\frac{376}{421-376}$
d. $p=\frac{376+421}{376}$

1. the value of an autographed baseball card increased from $39 to $65. what is the percent increase in value of the baseball card?
2. a zookeeper predicted that the weight of a newborn lion would be 2.8 pounds. wh

Explanation:

Step1: Identify percent increase formula

Percent increase $p = \frac{\text{New Value} - \text{Original Value}}{\text{Original Value}}$

Step2: Solve question 1

Original = 376, New = 421. Substitute values:
$p = \frac{421-376}{376}$

Step3: Calculate question 2

First find value increase: $65 - 39 = 26$. Original value = 39.
$p = \frac{26}{39} \approx 0.6667$
Convert to percentage: $0.6667 \times 100 = 66.67\%$

Answer:

1. A. $p = \frac{421-376}{376}$
2. Approximately 66.7% (or $\frac{2}{3} \times 100 \approx 66.7\%$)