Nathan buys coffee and hot chocolate for his co-workers. Each cup of coffee costs $1.65 and each cup of hot chocolate costs $1.00. If he pays a total of $8.60 for 6 cups, how many of each does he buy?

5.21 or 0.19186046

Step-by-step explanation:

since both sides equal, there are infinitely many olutions.

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