Evelyn set up 15 rows of chairs in the cafeteria of her school talent competition in the first 10 rows. She set up 30 chairs on the left side of the middle aisle and X chairs on the right side in the last five rows. She set up 20 chairs on the left side of the middle aisle and y chairs on the right side to make room for the sound crew pick all the expressions that represent how many chairs Evelyn set up number one is (300+10x)+(100+5y) number two is 30(x+10)+20((y+5) number three is 10(30+x)+5(20+y) number four is x(10+30)+y(5+20) Pick all the expressions that represent how many chairs Evelyn set up

1 answer

The correct expressions that represent how many chairs Evelyn set up are:

1) (300+10x)+(100+5y)
2) 30(x+10)+20(y+5)
3) 10(30+x)+5(20+y)
4) x(10+30)+y(5+20)