A couple decides on the following savings plan for their child’s college education. When the child is 6 months old, and every 6 months thereafter, they will deposit $300 into a savings account earning 9% semi-annually. After their child’s tenth birthday, having made 20 such payments, they will stop making deposits and let the accumulated money earn interest, at the same rate, for 8 more years, until their
child is 18 years old and ready for college. How much will be in the account when the child is ready for college?

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

one peck is 9.309 quarts

9.309x 2

1. 523.33 cubic inches

2. 113.04 cubic inches.

3. 17.41.

4. 16.49

i think this should be your answer

hope i

-lavira : )