22 POINTS ( LOTS OF POINTS) A student answered 81 problems on a test correctly and received a grade 90%.
How many problems were on the test, if all the problems were worth the same
number of points?
81 = .9 divide 81 by 9 and you get 9 points for every 10% since we need to find the last 10%, add 9 to 81 and you get that 90 problems were on the test :) hope this helps
