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Use Laplace transforms to solve the problems in Exercise. A 500-gal tank contains 200 gal fresh water. A saltwater water solu

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Let the amount of Salt in the tank at any time t is χ(t), then using the equation rate of change of amount of salt 4 gal miConsider the differential equation, dt 50 Take Laplace transporm on both sides 50 dt 2 S + 2 2 50 S50 50X = 100 Take the inverse Laplace transform on both sides, gives = 100 | 1-. exp(- 10t) 50 for tlo, 10 hus, the amount op salt50 100 ĺ 1-exp (-i] = c: , say Here, χ (0) So 50 C1 50 1 0 50 Take the inverse Laplace transform on both sides, gives S+1 50ie. t)50 + (Cj-50) exp C,- 100 [ 1-exp(-t)) G,-50- 50-00 exp-) :50 [ 1-2exp(- )] x(t)-50 + so [1-2exp(-钊exp(- ) ,, But this

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