Chelsea and shawna are selling cheesecakes for a school fundraiser. customers can buy french silk cheesecakes and apple cheesecakes. chelsea sold 2 french silk cheescakes and 3 apple cheesecakes for a total of $20. shawn sold 5 french silk cheescakes and 3 apple cheesecakes for a total of $32. find the cost of one french silk cheesecake and one apple cheesecake.

Shawna price went up by 12 dollars because of 2 extra french silks. I divides 12 by 2 and got 6 dollars.I subtracted 12 dollars from 20 and divides the rest by 3 and got 2.66$

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