Saved Bookmarks
| 1. |
Two number are in the ratio of 7:5. If they differ by 18, what is the number? |
|
Answer» Answer: Step-by-step EXPLANATION: The numbers are 56 and 40. A/B = 7/5 (1) A-B = 18 (2) From (1) we GET 5A = 7B or 5A - 7B = 0 (3) From (2) we get 5A - 5B = 80 (4) Subtract (3) from (4) and get 2B = 80 so B = 40. A = 40 + 16 = 56 |
|