As September is winding down, we can see that nine of the twelve calendar months of the year have passed. This is 9/12 = 3/4 = 75% of 2020, when considering just the months. If we instead want to know what percent of the days in 2020 have passed at the end of the last day of September, what would that percentage be? Express your answer to the nearest tenth.

The percent of the days in 2020 has passed at the end of the last day of September is:

Step-by-step explanation:

To identify the percent of the days in 2020 has passed at the end of the last day of September, first, you must add the days in each month of 2020:

Days passed= 31+29+31+30+31+30+31+31+30= 274 days.

How you know, a leap year has 366 days, so, you must divide the days until the last day in September (274) in the total days in a leap year, also you must multiply this value by 100 to obtain a percentage:

So, the percentage is 74.86% or 74.9%, a value that if you approach it would be 75% equally.

step-by-step explanation:

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225