math homework

A:Okay, we are not all americans here, so we don't know what type of coins is there. anyway, let's supose u have 2 type of coins, first type worth x dollars, and the other y dollars, (ex: x=0.5 dollars and y = 0.2 dollars) and the number of coins needed is a for the first type of coins and b for the second, our equation will be, a*x+b*y=S (1) where S=1.8 dollars in your question, and u put x, and y in their values. and the other equation is a+b=22; (2) this is a system of 2 equations for 2 unknow, u should be able to solve it !

A:Unfortunately, I do not think there is something out there like that (yet). But we (at Yahoo! Answers) can help you with it. The best choice would be to show your problem and ask for the steps (and answer) to the problem and how and/or why it is that way ^-^ You question is similar to this: http://answers.yahoo.com/question/index;_ylt=Ah82S19rBtLFGd_NzgNI29nsy6IX?qid=20061024150401AAR9dGH

A:Try to make him see that math problems are puzzles, and can be fun to solve. Maybe try playing other number/logic games with him, like sudoku or solving riddles or board or card games in which you should count/calculate. If he does know how to solve the problems and can give correct answers when you ask him, how about telling him 'Gee, mommy doesn't know if she can remember that, could you write it down?' I am no expert and I am not a mother, but I wish this was how they posed me those problems when I was a kid struggling with homework. Plus, make him understand that wrong answers aren't the end of the world either; he may just be self-conscious about making errors.

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A:Pull him aside (take his audience away) and sit with him while he begins. Just calmly say, please get started on your work. If he asks for help it's a good teaching opportunity. If he jokes around or gives excuses, don't get into a debate with him, just calmly repeat, "please get started on your work." When he no longer has an audience or has you captured in a back and forth argument, he will have nothing to do but his work. Don't get mad, just calmly repeat your request until he complies. As an assistant, you might have the time to spend with him and not worry about the other students in the class.