How many pounds of candy that sells for $0.81 per Ib must be mixed with candy that sells for $1.27 per Ib to obtain 7 lb of a mixture that should sell for $0.92 per lb? 1. $0.81-per-lb candy: lb?

step-by-step explanation:

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

a

step-by-step explanation: