Four hundred seventy of one thousand contestants were girls girls made up what fraction of the contestants?

The fraction is 470/1000, which can be simplified to 47/100, and that is 47%.

Step-by-step explanation:

Basically you take what is asked for and you divide it by the total amount.

470 is the amount of girls as contestants.

1000 is the total amount of contestants.

And that gives you the ratio 470/1000.

Hope this helped!

the size of the resulting matrix is 1-by-3.

step-by-step explanation:

the size of the two matrices given are as follows:

no .of rows of matrix 1 = 1

no .of columns of matrix 1 = 3

no .of rows of matrix 1 = 3

no .of columns of matrix 1 = 3

to find the size of the resulting matrix without actually solving the multiplication of the matrix, this is what you do:

if resulting matrix = matrix 1 * matrix 2

no. of rows of the resulting matrix = number of rows of matrix 1

no. of columns of resulting matrix = number of columns of matrix 2

note: the order of the matrices matter!