can anyone help me?! see out of 100 students who appeared in grade 8 exam of united gurkha school,60 studenrs passed mathematics,50 science and 20 in both subjects. how many students failed in both subjects ?​

Create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

You put the following items into your rucksack. ham 600 g cheese 380 g tomatoes 270 g how much do all the ingredients weigh in total?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?