Algebra( Week 21 Evaluation) 1. If 9x is deducted by 6y, and the difference is then multiplied by , which of the following is the result? 2. Which of the following is the correct representation of phrase "6 less than 3 times x"? 3. Joe is now 14 years old, and is 5 years older than Susan. In how many years will Joe be twice as old as Susan is now? 4. 4 years ago, Martha was 5 years older than Edward is now. If Edward's present age is X, what will be Martha's age 3 years from now? 5. Josh is 6 years younger than Rene. Jay is one fourth as old as Rene is now. If Jay will be 11 years old 5 years from now, how old is Josh now? 6. 7 years from now, Curtis will be 4 times as old as Mary is now. If Mary's present age is Y, what was Curtis's age 2 years ago? 7. Smith is 4 times as old as Martha is now. 10 years from now, he will be 3 times as old as Martha then. How old is Martha now? 8. In a certain class, the number of students who have five letter or less in their last names is 5 times of the students who have more than five letters in their last names. If there are a total of 60 students, how many students are there in the class who have five letters or less in their last names? 9. There is a larger circle C with an area of 100π. You are asked to draw two circles A and B without overlapping within circle C. What is the largest possible sum of circumferences of A and B?
10. 6 years from now, Jay will be 3 times as old as Hillary is now. If Jay's present age is Y, what will be Hillary's age 8 years from now? |