Question

By what percent did the area change 40 to70

Answer 1

Answer:

75%

Step-by-step explanation:

A change from 40 to 70 represents a positive change (increase) of 75%

Percent change = 70 - 40

|40|

x 100 = 30

40

x 100 = 75 % (increase)

Where: 40 is the old value and 70 is the new value. In this case we have a positive change (increase) of 75 percent because the new value is greater than the old value.