Suppose you drive 75 miles and use 3 gallons of gasoline. at the same ratio, how many miles can you drive with 12 gallons of gas?

300 miles

Step-by-step explanation:

just do 3 times 4 you get 12 so you do 4 times 75 and you get 300

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