One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus, and potassium. An 80 lb sample contains 8 more lb of nitrogen and phosphorus than potassium. There is…
Month: December 2015
Problem 2022
If possible, solve the system of linear equations and check your answer. 3x + 7y = 9 x + 5y = 11 Solution:- The solution is (-4,3).
Problem 2021
Sales of Osgood’s Nature Soap have increased by 15% annually since 2000. Let f(t) be the annual sales if Osgood’s Natural Soap in thousands of bars, t years after 2000.…
Problem 2020
Solve the logarithmic equation. 380 + 20 log x = 40 Solution:- The solution is x = 10-17
Problem 2019
Solve the logarithmic equation. ln (x) + ln (x – 2) = ln 3 Solution:- The solution is x = 3
Problem 2018
Solve the logarithmic equation. log5x + log5(x+2) = log53 Solution:- Rewrite the left side of the equation as one logarithm, using the properties of logarithms. log5(x(x+2)) = log53…
Problem 2017
Solve the logarithmic equation. 210 + 10 log x = 30 Solution:- 210 + 10 log x = 30 10 log x = -180 log x = -18…
Problem 2016
Solve the logarithmic equation. 7log x = -14 Solution:- First divide both of the equation by the common factor. log x = -2 now write an equivalent exponential…
Problem 2015
Solve the exponential equation. 2.4 e-1.2x = 1 Solution:- The solution is x = .7296
Problem 2014
The cost c, in dollars, for bag of oranges is a function of the weight W (in pounds) of the oranges, where c = f(W). What is the interpretation (practical…
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