Equations in 2 variables

First problem: 4x+3y=10 3y=10-4x Second Problem: (x+1)y=3 y=3 over x+1

Page 351: 13- 2x+y=6 y=6-2x
14-5x+y=7 y=7-5x
15-3x+2y=8 2y=8-3x
16-2x+5y=10 5y=10-2x

Percents%

You have just graduated college and have found your dream job as a dentist! Let's pretend you will be making around $1200 per month, depending on overtime, bonuses, etc. Now here is the deal - you need to make sure you manage your money wisely. Answer the following questions:
1) Your rent plus utilities (gas, water, internet, phone, etc.) is $540 a month! What percentage of your monthly income is this? 45%
2) You spend about 6% of your income per month on your cell phone bill! What amount is this?72$
3) You usually spend around $200 per month on groceries. Find this percentage. 16.6%
4) You spend about $40 per week on gas filling your car's gas tank! What percentage of your monthly income is spent on gas? 3.33%
5) You like to use the remaining money and split it - using 60% on entertainment (movies, shopping, etc.) and putting the other 40% in savings. About how much money is spent on entertainment and how much is put in savings? Entertainment=720$ Savings=480$

factor

Explain (could be in step form) how to factor the following polynomials. (2) = squared1) 2x(2)+ 10x -242) 4x(2) + 20x + 253) x(2) - x – 124) 9x(2) - 81

To get this simplified first go through and write it out, but when it says 2x(2), you would do 2x times 2x beacause they are trying to tell you instead of leaving it as 2x(2) do 2x times 2x to make it easier and 2x times 2x= 4x(2). You would then leave the 10x and go onto 24(2). That would be 24 times 24=576. Then multiply 4x times 4x and that =16x(2). Then + 20x and then + that to 253. Multiply that to x(2) then - x and - 124. Multiply that to 9x(2) and that = 81x(2)-81.

ChAlLaNgE

Pretend you want to fit a perfectly shaped circular rug into your perfectly square room. All you know right now is that the radius of the rug is "r" feet long. 1) Find the area of the rug, 2) the area of the room and then 3) the area of the room that won't be covered by the rug. (hint -draw a picture!)

1.The area of the rug is 3.14rsquared
2.The area of the room is 4rsquared ♥
3.The area of the room that wont be covered is 14% of it.

new gas prices

The lowest gas price is $1.97. Now with the new gas prices, it would only cost me $25 dollars to fill my car up. The equation I used was 250 miles per week/22 mpgx$2.20= $25. It used to cost me 40 dollars but now it costs me 25 so i am now saving myself 15 dollars.

I learned from reading those article that for every one dollar decline in the price of oil saves the U.S consumers one billion dollars. Also, I learned that gas prices haven't dropped this much until the 1980's! 60% of the worlds gasoline is being used by people going to work. That is what I learned from that article.

Polynomials

Then, POST about something new you learned AND something that is now clearer for you. After you have posted, leave me a comment on this assignment so I know you are done! :)

I have learned what a binomial a trinomial a monomial and a polynomial was. A binomial is an equation with 2 terms. A trinomial is an equation with 3 term A polynomial is an equation with many terms and a monomials is an equation with 1 term. Something that is more clear to me is how you combines like terms and exponents. I learned when you are multiplying two polynomials with different exponents you add the to exponents to simplify it.

Back to school bargains.

I chose the article Back to School Bargains because I wanted to see how we can save money on school clothes.This kind of relates to me because in my family we have 4 kids and clothes can be expensive especially when it comes to winter clothing because of the coats, hats, gloves, boots, and warm clothing like jeans and sweatshirts. I learned that if the clothes at all the popular stores are way to expensive for you, you can go to platos closet or the child place. At platos closet you can get abrocrombie and american eagle and hollister for really cheap prices and at the child center you can get cheap clothes like gap and the childrens place clothes.