Arestaurant has 50 50 tables. 40% 40 % of the tables have 2 2 chairs at each table. the remaining 60% 60 % of the tables have 4 4 chairs at each table.
complete the model. then complete the statements to find the total number of chairs in the restaurant.
Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.
Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of