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Answers by Kathryn V.

4x + 5y = 12, 3x + 4y = 10 (answer)

Here is another way to solve this problem. To solve it, what you want to do is isolate one of the x's or y's, plug what you get into one equation, solve for one variable, and then other (phew... that was a lot to write... let me just show you). Our equations are:   4x + 5y = 12...

(-9x² + 6x + 2) + ( 4x² - x -1)= (answer)

This question may seem confusing because there are parentheses involved. Because you are not multiplying, dividing, or subtracting the two sets of parentheses, just get rid of them! By eliminating parentheses, we get:  -9x2 + 6x + 2 + 4x2 - x - 1. Now, group like...

How to write this problem as an equation (answer)

If the phone company charges a service fee, then we know that no matter how many minutes the caller talks, they will always have to pay it. Because of this, we know our equation must include +0.70. This is the tricky part, and you can write this equation two ways. I will show you one of...

How do you keep focused? (answer)

First, if you struggle with staying on task, you should always do your most difficult homework first, while you are still focused. You should always sit at a desk-- this will also keep your mind from wandering. One of the worst things you can do is be on the couch watching TV if you struggle...