There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 67. There are 30 red marbles in the bag and each is equally likely to be chosen. Work out how many marbles in total there must be.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

jwjwkwkwkkkdjebd b jdjejdndj he jenej

32

step-by-step explanation:

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.