A company is printing 300 calendars in 1 hour 90 calendars are printed what percent of the calendars are printed in 1 hour

30% of the calendar was printed within an hour

Step-by-step explanation:

The company wants to print 300 calendars in an hour, but was able to print 90 calendars in an hour, therefore to get the percentage printed

therefore the company was able to print 30% of the calendar within an hour

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,