A sum of money was shared among Mr. Edwards, Mr. Hayles and Dr. Smalling in the ratio 3:5:7. If Dr. Smalling’s share amounts to $350. Calculate the: a. total sum of money to be shared. b. percentage of the total amount that Mr. Hayles received.

niot sure

Step-by-step explanation:

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