Algebra( Week 21 Practice) 1. If 9x is deducted by 12y, 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 "10 less than 7 times x"? 3. 3 years ago, Jennifer was 2 years older than Eric is now. If Eric's present age is X, what will be Jennifer's age 6 years from now? 4. David is 3 years younger than Eric. Richard is one third as old as Eric is now. If Richard will be 15 years old 9 years from now, how old is David now? 5. Rene is 3 times as old as Anne is now. 5 years from now, he will be twice as old as Anne then. How old is Anne now? |