Question

Example 1 - Find Percent Increase (page 538)What is the percent change of the alligator's length?Percent change and percent errorproblems are kinds of percent problems.You can use the percent equation tosolve them.part = percent wholeamount = percent • originalof changechange amount32 inches last yearThe percent change is apercent increase because thealligator's length increased.% change32 inches32 inches38 inches this year100%The changein length is6 inchesThe amount of change is the differencebetween original and new values.Is the change from last year to this year a percent increase or percentdecrease?The alligator's length increased by%

Answer 1

Tropical Tri, this is the solution to the exercise:

Alligator's length last year = 32 inches

Alligator's length this year = 38 inches

Change in length = + 6 inches (increase)

Percentage of increase = 6/32 * 100

Percentage of increase = 0.1875 * 100

Percentage of increase = 18.75%