Grace needs enough wood to make a frame for a picture. she needs the two sides to measure 12 1/2 and the top and bottom to measure 7 1/4 inches. how much wood do she need to purchase

Step-by-step explanation:

we know that

The total wood needed is equal to

Convert mixed number to an improper fraction

substitute

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

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!