Thursday, March 12, 2009

  1. 2x+y=6 x=2 y=2
  2. 5x+y=7 x=1 y=2
  3. 3x+2y=8 x=2 y=1
  4. 2x+5y=10 x=0 y=2

Thursday, February 19, 2009

Percents

My job would be septic tank cleaner.

1. 540/1200=45%

2. .o6*1200=$72

3. 200/1200=16%

4. 40*4/1200=13%

5. 1200-972=228 left over 228*.6=136.8 on entertainment and 91.3 in savings

Thursday, November 13, 2008

Gas prices

Last month the equation would be 350/23 x 2.43=36.98



This month with gas at 1.93 I would spend 350/23 x 1.93=29.36 per week.



So 36.98-29.36=7.62 in savings!

Polynomials

Something new i've learned is that a term with no variables is called a constant term. Something that is now clearer is that unlike terms can be multipilied but not added or subtracted.

Thursday, October 16, 2008

1. The average american drives 15 miles each way from work. So on average (15 x 2)7=210 miles on average.

2. 350/23 x 2.43 = $36.98 per week in gas.

Bonus. (350 x 4)/23 x 2.43= $147.91 per week in gas.

Monday, October 6, 2008

My Car

If my parents let me get any car I would get a Porsche 911 Turbo. I would get this because it gets great gas mileage for a sports car. The volume of my gas tank is 17.4 gallons. The Porsche gets 23 mpg on the highway. Todays gas price is $3.25 x 17.4 is $56.55 per tank. Each year it would cost $2940 a year.

Thursday, September 25, 2008

Second Assingment

I think we can use the blogs in math class to do homework. Homework will be easier to do because we can type the answers to all the math problems. Also we can't forget homework. It will help me because homework will be alot easier to do. It might even be fun to learn now.