Saved Bookmarks
| 1. |
9) The cost of the book is 5 rupees more than twice the cost of a pen. Showthis using linear equation by taking Cost of book(x) and cost of a pen(y). |
|
Answer» Given :- The cost of the book is 5 rupees more than twice the cost of a PEN. Show this using linear equation by taking Cost of book(x) and cost of a pen(y). Solution :- Let us assume that, cost of book is Rs.x and cost of a pen is Rs.y . given that, → cost of a book = 2 * cost of pen + 5 so, → x = 2 * y + 5 → x = 2y + 5 → x - 2y = 5 . Hence, REQUIRED linear equation will be x - 2y = 5 . Learn more :- A RECTANGLE having LENGTH of a side is 12 and length of diagonal is 20 then what is length of other side? (A)2 (B) 13 ... |
|