Which portion would you use to solve this problem? nine is 4% of what number? a. 9/x = 40/100 b. 9/x = 4/100 c. 4/9 = x/100 d. x/9 = 4/100

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

Find the solution of this system of equation -7x+y=-20 9x-3y=36

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?