1. what is 50% of 30?

2. take that answer and add it to 30 and what do you get?

I can’t tell you the answer though

30 situps per min= 100%

ok so

45-30=15

15 of 30=50%

add the 100% which is 30

and the 50% which is 15

45=150%

I don’t know any other way to explain but I hope you can understand! I have issues with math so I know how hard it is to understand sometimes…

a 150% improvement would mean she did 1 1/2 times as many sit-ups.

example: going from 30 to 60 would be a 100% improvement.

30 to 75 would be a 150% improvement.

The answrs is that it is correct because if u divide the 30 situps by 100 you get 0.3 and if you times the 0.3 by the 150% the answer is 45. I hope this helps you in some way.

x=(45-30)/30