Question

There are 68 people employed by Food Giant in the Chang’s village. New workers receive $9.50 per hour while experienced workers receive $14.00 per hour. The company spends a total of $835 per hour in wages. Find the number of new workers.

Answer 1

Let's named variables, new workers as x and experienced workers sa y.

We get two equations
x+y =68 ∧ 9.50x+14y=835

From the first equation we have x=68-y, then replace in the second and get

9.5 (68-y) + 14y = 835 =>   646 - 9.5y+14y=835 

4.5y= 835-646 => 4.5y=189  => y= 189/4.5 = 42

when we replace y=42 in the x=68-42 =26 we get x=26

The correct answer is

The number of new workers is 26 !

Good luck!!!!