Respuesta :
Answer:
bill = 6
hoang = 14
Step-by-step explanation:
the following equations can be formed from the question
H = 8 + b eqn 1
h - 2 = 2b eqn 2
make h the subject of the formula in eqn 2
h = 2b + 2
2b + 2 = 8 + b
collect like terms
2b - b = 8 - 2
b = 6
h = 8 + 6 = 14
Her friend bill has worked 6 years in the hospital and Hoang has worked 14 years in the hospital.
She worked as a nurse for 8 years longer than her friend bill.
let
x = how long bill has worked in the hospital
Therefore,
Time Hoang has worked in the hospital = x + 8
Two years ago she has been at the hospital for twice as long . Therefore,
x + 8 - 2 = 2x
6 = x
x = 6
Her friend bill has worked 6 years in the hospital and Hoang has worked 6 + 8 = 14 years in the hospital.
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