Question

Which situation below represents a 30% decrease?

from 50 to 35 OR from 30 to 27

Answer 1

50 to 35

Explanation:

`(30)/(27) =(100)/(y)`

30y = 2700

y = 90

27 is 90% of 30.

`(50)/(35)=(100)/(y)`

50y = 3500

y = 70

35 is 70% of 50.

Answer 2

Answer: 50-35

Explanation:

Because if you calculate it, 50x70% or 50x0.7 is 35. I multiply bt 70% not 30% because you are trying to find the amount after the 30% decrease, meaning it is 70% of the orginal value.