Question

Which problem can be solved using this inequality?

3x - 7 ≥ 20
A) Three times a number x less seven is less than twenty.
B) Three times a number x less seven is less than or equal to twenty.
C) Three times a number x less seven is greater than or equal to twenty.
D) Three times the difference of a number x and seven is greater than or equal to twenty.

Answer 1

The symbol ≥ stands for greater than or equal to a number. Where as subtraction can also mean less than a number. Therefore the correct answer among the choices is:

C) Three times a number x less seven is greater than or equal to twenty.