Justin and Chris both convert 45 pounds to kilograms. Justin gets an answer of 20.43 kilograms and Chris gets an answer of 99 kilograms. Who is correct and what mistake did the other person make?

Justin is correct

Step-by-step explanation: Chris's mistake was he probably didn't know that  1 kg = roughly 2.2 pounds

answer: 40.95

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