Monday, December 12, 2011

Math home work, Solving Equations and Inequalities I don鈥檛 understand it. Please ?

11.


3m + 9 18


鈥?m 6


鈥?m 6


鈥?m 鈥?


鈥?m 3





13.


14 鈥?2x %26gt; 18





鈥?x %26gt; 鈥?


鈥?x %26lt; 鈥?


鈥?x %26gt; 鈥?


鈥?x %26lt; 鈥?








15.


The formula for converting degrees Fahrenheit (F) to degrees Celsius (C) is C =5/9 (F 鈥?32). Find C for F = 5掳.





鈥?鈥?9掳


鈥?鈥?7掳


鈥?3掳


鈥?鈥?5掳





16.


Jordan invested $1000 in a savings account. The interest rate is 6% per year. Find the simple interest earned in 4 years. Then find the total of principal plus interest.





鈥?$24,000.00; $25,000.00


鈥?$60.00; $1,060.00


鈥?$262.48; $1,262.48


鈥?$240.00; $1,240.00


17.


Abbi invested $1,500 in a certificate of deposit with a simple interest rate of 4%. Find the interest earned in 6 years. Then find the total of principal plus interest.





鈥?$36,000.00; $37,500.00


鈥?$360.00; $1,860.00


鈥?$397.98; $1,897.98


鈥?$60.00; $1,560.00


18.


You deposit $400 in an account that earns 6% compounded annually (once per year). What is the balance in your account after 5 years? Round your answer to the nearest cent.





鈥?$535.29


鈥?$2,120.00


鈥?$520.00


鈥?$693.56


19.


Alecia deposited $500 in a savings account at 5% compounded semiannually. What is her balance after 5 years?





鈥?$650.00


鈥?$640.04


鈥?$670.05


鈥?$897.93


Short Answer


20.


Caitlin had $402 in her bank account. She withdrew $15 each week to pay for a


swimming lesson. She now has $237.





a. Write an equation that can be used to find the number of swimming lessons that she paid for.


b. How many swimming lessons did she pay for?


c. At the time she has $237, the cost of a lesson rose to $19. How many lessons can she pay for with her remaining $237?|||number 13 is 鈥?x %26lt; 鈥? i believe.


11 is m=3|||Do your own work againa and stop effin cheating

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