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Easy

Question

# After diluting salt water, the concentration of salt in the water is given by the function , where x is the time in hours since the dilution .

a. What is the concentration of salt in the water after 4 hours?

## The correct answer is: a) We have to find concentration of salt in water after 4 hours X= 4

### We have given the function

F(x) = 0.5x/ x^{2}- 1

where x is the time in hours since the dilution

a) We have to find concentration of salt in water after 4 hours

X= 4

F(4) = 0.5(4) / (4)(4) – 1

= 2/ 15

= 0.1333

^{2}- 1

where x is the time in hours since the dilution

a) We have to find concentration of salt in water after 4 hours

X= 4

F(4) = 0.5(4) / (4)(4) – 1

= 2/ 15

= 0.1333

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