Question

In questions 1 to 10, choose a letter x, y, z, p etc., wherever necessary, for the unknown (variable) and write the corresponding expressions. 1: One more than twice the number. 2: 20°C less than the present temperature. 3: The successor of an integer. 4: The perimeter of an equilateral triangle, if side of the triangle is m. 5: Area of the rectangle with length k units and breadth n units. n 6: Omar helps his mother 1 hour more than his sister does. 7: Two consecutive odd integers. 8: Two consecutive even integers. 9: Multiple of 5. 10: The denominator of a fraction is 1 more than its numerator​

Answer 1

Answer:

1. y = 2x + 1

2. y = x - 20°C (with x in °C)

3. x = y + 1

4. p = 3m

5. a = kn

6. o = s + 1hr

7. a, a + 2

8. Same as (7)

9. y = 5x

10. z / z + 1

Notes:

In a case where an number and letter or two letters (such as 3m or kn), use multiplication (3m = 3*m).