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
Thursday, March 12, 2009
Thursday, February 19, 2009
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$
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$
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