A glass of lemonade took 4 1/3 scoops of sugar to make. If you wanted to make 3 glasses, how many scoops of sugar would you need?

12 1/2

Explanation:

=2 1/2 × 5

=5/2×5

=25/2

Divide 25 by 2

=25/2

=12 1/2

4 times 3 = 12

1/3 times 3 = 1

12 + 1 = 13

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