Question

a zoo had 2,200 visitors last month, and 3,520 visitors this month. what was the percent increase in the number of visitors? what was the percent increase in the number of visitors? in other words, 3,520 is what percent greater than 2,200? you can use your zearn calculator to help you solve on paper. then enter your answer on zearn. visitors 0 2,200 3,520 0% 100% ? p · 2,200 = 3,520 there was a □% percent increase in the number of visitors.

Explanation:

Step1: Find the increase in visitors

Subtract last month's visitors from this month's: $3520 - 2200 = 1320$

Step2: Calculate the percent increase

Use the formula $\text{Percent Increase} = \frac{\text{Increase}}{\text{Original}} \times 100\%$. So $\frac{1320}{2200} \times 100\%$. Simplify $\frac{1320}{2200} = 0.6$, then $0.6 \times 100\% = 60\%$. Alternatively, from the equation $p \cdot 2200 = 3520$, solve for $p$: $p = \frac{3520}{2200} = 1.6$, which is $160\%$ of the original, so the increase is $160\% - 100\% = 60\%$.

Answer:

60