A manufacturing plant earned $80 per man-hour of labor when it opened. Each year, the plant earns an additional 5% per man-hour.Write a function that gives the amount A(t) that the plant earns per man-hour t years after it opens.A(t)=
Q. A manufacturing plant earned $80 per man-hour of labor when it opened. Each year, the plant earns an additional 5% per man-hour.Write a function that gives the amount A(t) that the plant earns per man-hour t years after it opens.A(t)=
Identify initial amount and increase rate: Identify the initial amount earned per man-hour and the annual increase rate.The initial amount earned per man-hour is $80. The annual increase rate is 5% or 0.05 in decimal form.
Write function for amount earned per man-hour: Write the function for the amount earned per man-hour after t years.The amount earned per man-hour after t years can be represented by an exponential growth function because the earnings increase by a constant percentage each year.The general form of an exponential growth function is A(t)=A0×(1+r)t, where A0 is the initial amount, r is the growth rate, and t is the time in years.
Substitute values into exponential growth function: Substitute the given values into the exponential growth function.Using the initial amount A0=$80 and the growth rate r=0.05, we get the function A(t)=80×(1+0.05)t.
Simplify the function: Simplify the function.The function simplifies to A(t)=80×(1.05)t. This function represents the amount the plant earns per man-hour t years after it opens.
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