Mixed Review Worksheet Mixed Review Worksheet Mixed Review Worksheet Mixed Review Worksheet ---- Unit 1Unit 1Unit 1Unit 1 Name_____________________Name_____________________Name_____________________Name_____________________

Decide whether the following statements are true or false. If it is falseDecide whether the following statements are true or false. If it is falseDecide whether the following statements are true or false. If it is falseDecide whether the following statements are true or false. If it is false,,,, give a give a give a give a

counterexample.counterexample.counterexample.counterexample.

1)1)1)1) RationalsRationalsRationalsRationals are closed under divisiondivisiondivisiondivision....

2)2)2)2) WholeWholeWholeWhole numbers are closed under subtractionsubtractionsubtractionsubtraction.

Evaluate the expressions.Evaluate the expressions.Evaluate the expressions.Evaluate the expressions. 3)3)3)3) 250 3 7 (4 2) − + ÷

4)4)4)4) 43 2 6 2+ − ÷ 5)5)5)5) 2120 62

− •

Solve the following equations. Solve the following equations. Solve the following equations. Solve the following equations.

6)6)6)6) 17 = �

� + 13 7)7)7)7) 2v + 5v – 8 = 13

8)8)8)8) 4x – 7(x – 2) = 26 9)9)9)9)

�

� (3x + 5) = -24

10)10)10)10) 17

2 20

x= 11111)1)1)1) 2 4 4

3 2 14

v

v

+=− +

12)12)12)12) In 2 days, 170 students In 2 days, 170 students In 2 days, 170 students In 2 days, 170 students signed up to run the Habitat for Humanity Race. At that signed up to run the Habitat for Humanity Race. At that signed up to run the Habitat for Humanity Race. At that signed up to run the Habitat for Humanity Race. At that

rate, how many students will sign up in the next 15 days?rate, how many students will sign up in the next 15 days?rate, how many students will sign up in the next 15 days?rate, how many students will sign up in the next 15 days?

13)13)13)13) 15 is to 30 as what number is to 50?15 is to 30 as what number is to 50?15 is to 30 as what number is to 50?15 is to 30 as what number is to 50?

Solve for y.Solve for y.Solve for y.Solve for y. 14)14)14)14) 5x 5x 5x 5x –––– 3y =93y =93y =93y =9 15)15)15)15) 8x + 2y 8x + 2y 8x + 2y 8x + 2y = 12= 12= 12= 12

16)16)16)16) 3333x +21 = 36 x +21 = 36 x +21 = 36 x +21 = 36 –––– 6y6y6y6y 17)17)17)17) Ax + By = CAx + By = CAx + By = CAx + By = C

18)18)18)18) What is 10% of 25?What is 10% of 25?What is 10% of 25?What is 10% of 25? 19)19)19)19) 80 is 143% of what number?80 is 143% of what number?80 is 143% of what number?80 is 143% of what number?

20)20)20)20) What percent of 84 is 21?What percent of 84 is 21?What percent of 84 is 21?What percent of 84 is 21?

21)21)21)21) A bicycle is on sale at a store for 25% off the original price of $265. How much A bicycle is on sale at a store for 25% off the original price of $265. How much A bicycle is on sale at a store for 25% off the original price of $265. How much A bicycle is on sale at a store for 25% off the original price of $265. How much

will the bike cost on salewill the bike cost on salewill the bike cost on salewill the bike cost on sale after tax, if after tax, if after tax, if after tax, if tax is 8%? tax is 8%? tax is 8%? tax is 8%?