To make purple paint, mya mixed 2/5 cup of red paint with 5/8 cup of blue paint. she wants to make a larger batch of the purple paint. how much red paint is needed to mix one cup of blue paint?

is the answer 16/25

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

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation: