Answer asap! the table shows the percentage of total athletes at a school that play certain sports. each athlete only plays one sport. twenty athletes play baseball. how many athletes are there at the school? (25% of kids who play baseball. 30% of kids who play football. 45% of kids who play other sports).

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