Problem. A man made lake initially contains 200 gal of water with 50 lb of a chemical dissolved into it. A solution containing 3 lb/gal of the chemical runs into the lake at a rate of 4 gal/min and the well mixed solution runs out of the lake at a rate of 4 gal/min. What is the maximum amount of chemical ever in the lake? A. Set up a differential equation modeling the amount of chemical in the lake at any time. (Choose your own notation, and clearly indicate meaning) B. Solve the differential equation. C. Based on the solution, answer the following: What is the maximum amount of chemical ever in the lake?

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

27 + 13x + 15 = (x + 5)( =

step-by-step explanation:

27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( =

jeff jeff

step-by-step explanation: