<p>1) 2kx=y
If x is not equal to y in the equation above, which of the following cannot be the value of the constant k?
Answer is 1/2 but how ?)
2)
Companies C's retirement policy states that an employee is first eligible to retiree when the sum pd the employees age and number of years the employee has worked for company C is 70, provided that the employee has worked at Lear 15 years in the company. If denies is 45 and has worked 9 years, how many more years must she continue to work for the company before she is first eligible to retire?
The answer is 8 . I piked 16 as 9+16+45 =70 </p>
<p>1.
Well if k was 1/2, then it would leave the equation x=y which is given that it cannot happen. Any other value of k would not leave x being multiplied by 1.
2.
You have to remember, every year the worker works, he/she also ages. So of the worker works 10 years, then the worker is 46 years old. So by adding 8 more years, the worker has worked 17 years and will be 53 years old.
17+53=70</p>