The total time to burn a cd is 18 minutes. last weekend, demitri spent 90 minutes burning cds. write and solve a multiplication equation to find the number of cds demitri burned last weekend.

answer:

1520

step-by-step explanation:

because 18x9=162 times the whole thing is 1520

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

7

step-by-step explanation:

i'm assuming you need to figure out how many campers go into each tent.

i got the answer by:

24+4=28

28/4=7