Algebra( Week 21 Practice) 1. If 15x 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 "9 more than 10 times x"? 3. 7 years ago, Jennifer was 2 years older than David is now. If David's present age is X, what will be Jennifer's age 2 years from now? 4. Edward is 4 years younger than John. George is half as old as John is now. If George will be 14 years old 7 years from now, how old is Edward now? 5. Richard is 4 times as old as Morgan is now. 7 years from now, he will be 3 times as old as Morgan then. How old is Morgan now? |