Question

Round to nearest hundredth please :)

Answer 1

41.04

Explanation:

t represents time in hours, and we want to find the concentration after 10 hours. Therefore, we can substitute 10 in for t and solve.

s(t)=
`500*e^(-0.25t)`

s(10)=
`500*e^(-0.25(10))`

Multiply the numbers in the exponent

s(10)=
`500*e^(-2.5)`

Evaluate the exponent

s(10)=500*0.08208499862

Multiply

s(10)=41.0424993119

Rounded to the nearest hundreth:

s(10)=41.04

So, after 10 hours, the concentration of salt will be 41.04