suppose that 30% of the female students and 40% of the male students in a college history class are from a major city. if there are 50 female students and 30 male
students in the class, then of the female students and of the male student are from a major city of the 80 students in the class in total, 7% are from
a major city. the percentage of students from a major city is not equal to the average of 30% and 40%, which is 35%, because the number of female and male students
in the class

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

c: lkllmn.

hope it's you

mnkjn

step-by-step explanation:

t

step-by-step explanation:

ever thing time 1 is a multiply by 1 it get