Review Sheet Answers ALGEBRA

Chapter 3 Review:
1.) Three possible solutions: one solution, no solution, all real numbers. If you get one solution, you will actually be able to solve the equation and get an answer. If you get no solution, the variables will cancel out and what you will be left with is an equation that is an UNTRUE statement. (example: 5 = 2) If you get all real numbers, the variables cancel out, and what you have left is an equation that is a TRUE statement. (example : 5 = 5)

2.) To obtain integer coefficients with fractions, multiply the whole equation by a common denominator. To obtain integer coefficients with decimals, multiply the whole equation by a power of 10 that will eliminate the decimals.

3.) If the problem states: "rewrite the equation so x is a function of y", we solve for x since it says "x is". If it says "rewrite the equation so y is a function of x" we solve for y since it says "y is".

4.) 5/9(F - 32) = C

5.) A/Pt - 1/t = r

6.) x = $19.05

7.) x = 74, x + 2 = 76, x + 4 = 78

8.) a.) y = 15 + 3x b.) 10x - 7 = y

9.)x = -58

10.) t = 4 hours Olivia Sara-- 6 hours

11.) x = 10 2/3

12.) x = 70 mins

13.) x = 182 raffle tickets


Chapter 3 Word Problems Review

1.) x = $141.18

2.) t = 6hrs , t-2 = 4 hours

3.) x = 42.86 days --> 43 days

4.) t = 1/2 hours








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