Maris has 1,400 minutes to use on her cell phone she has used 45% of her minutes how many minutes has she used

She has used 630 min

1400*.45=630

.45 is equal to 45%

So, we need to find what 45% is first so that we can multiply it from 1400 minutes to get the minutes used. To do this, we must change 45% into a decimal, which is 0.45. Now, you can multiply 1400 by 0.45 to get the total number of minutes used. So, 1400*0.45= 630. She has used 630 minutes. Hope this helped!