Solve 3x + 8> 2, when x is an integer.

Solve \(|3-4x|\ge 9\).

In drilling world's deepest hole it was found that the temperature T in degree Celcius x km below the Earth's surface was given by T (x) = 30 + 25(x - 3), where 3 \(\le \) x \(\le \) 15. At what depth will the temperature be between 155^o C and 205^o C?

Solve the linear inequality 3x - 5 < x + 7, when x is a whole number

A person was not feeling well, so he went to a doctor. Doctor on examination found that his temperature varies between 30^oC to 35^oC.What is the range of temperature in degree Fahrenheit?  Do you think his temperature is normal? If not, what is normal temperature of body in Fahrenheit? Does he need medical attention?
Use conversion formula, F = \(\frac { 9 }{ 5 } \) C + 32

Find all pairs of consecutive odd positive integers, both of which are smaller than 18, such that their sum is more than 20.

The longest side of a triangle is 3 times the shortest and the third side is 2 cm shorter than the longest side. If the perimeter of the triangle is atleast 61cm. Find the minimum length of the shortest side.

Solve the inequalities graphically - 5x +4y \(\le\) 20, x \(\ge\) 1, y \(\ge\) 2

How many litres of water will have to be added to 1125 litres of the 45% solution of acid so that the resulting mixture will contain more than 25% but less than 30% acid content?