# Questions on Algebra: Logarithm answered by real tutors!

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 Algebra: Logarithm Solvers Lessons Answers archive Quiz In Depth

 Question 566804: 3 = log down 5 x + log down 5 (x+20) soe help Click here to see answer by solver91311(16897)

 Question 567199: how do you solve 3.5^x=47.9 without using a calculator? I get really confused when it comes to the decimals.. Click here to see answer by stanbon(57361)

 Question 567309: Express 2log 3 + 3log 2 - log 6 as a single logarithm. Click here to see answer by Alan3354(30993)

 Question 567879: I am trying to solve e^.05t = 1600 I have tried and just can't figure it out Click here to see answer by jim_thompson5910(28595)

 Question 567717: solve the following equation for x: 27^(5-x) = 9^(x-2) Click here to see answer by jim_thompson5910(28595)

 Question 566988: What is the exponential form of (square root of 7)^5 Click here to see answer by jim_thompson5910(28595)

 Question 569119: I need help on how to show my work when solving this problem: e^.05t = 1600 Click here to see answer by Alan3354(30993)

 Question 570002: For all x>2, log(x-2)+ log x = ? A) log (-2) B) log(2x-2) C) log (x^2-2x) D) log(x-2/x) E) log( x/x-2) Click here to see answer by jim_thompson5910(28595)

 Question 570037: Yes, hello I am doing Logarithms and I cannot solve these two problems: log(x+3)=log8-log2 ln sqrt(e) Please any help is appreciated Click here to see answer by Alan3354(30993)

 Question 570001: For all x>2, log(x-2)+ log x = ? A) log (-2) B) log(2x-2) C) log (x^2-2x) D) log(x-2/x) E) log( x/x-2) Click here to see answer by lwsshak3(6513)

 Question 569943: Log a-2 log b +3 log c (Rewrite the expression as a single log) Click here to see answer by lwsshak3(6513)

 Question 569885: What is the value of v, v=log base4 1024 Click here to see answer by lwsshak3(6513)

 Question 569367: How do you solve for x in the equation 7.2^x-4=8.21? Click here to see answer by lwsshak3(6513)

 Question 569126: Given log(base a)5 = 2.32, and log(base a)9=3.17, find log(base a) 25/9= amd find log(base a) radical 45 = Click here to see answer by lwsshak3(6513)

 Question 570185: okay i need to condense into a single logarithm 2logx+3log7-6logz Click here to see answer by josmiceli(9686)

 Question 570340: the expression log8 64 is equivalent to? 8 2 1/2 1/8 Click here to see answer by Alan3354(30993)

 Question 570809: please solve help me solve this word problem: Lucy bought a car for \$25,000. The value of the car depreciates by about 13% each year. when will the value of the car be \$10,000 ? please help me. and please show me the work to get the answer because i have no idea how to solve this problem. Click here to see answer by josmiceli(9686)

 Question 570808: how do u solve?: 3.5x^-4 = 175 please show work i don't understand how to do it. Click here to see answer by KMST(1868)

 Question 570820: Alice can vacuum in 40 minutes. It takes Bob 45 minutes to do the same job. Find the time it takes Alice and Bob to do the job together Click here to see answer by nerdybill(6962)

 Question 570935: how would you solve a problem solving for x: ln (x/630) = 1.2317? Click here to see answer by Alan3354(30993)

 Question 571218: Trying find answer to the following type problems. I was absent and do not have examples. log[3] 3r-1=3 I found an online calculator that said the answer is 27 I just cannot get there. Trey Click here to see answer by Alan3354(30993)

 Question 571240: help with this question please: (1/16)^-2v * 64=1 solve for v my teacher told me the answer is -3/4. Thanks Click here to see answer by Edwin McCravy(8909)

 Question 571344: Let x = log 2, y = log 3, and z = log 10. Express the logarithm in terms of x, y, and z. How do i solve it when the question is log 1.5 or log 0.75? Click here to see answer by lwsshak3(6513)

 Question 571351: Let x = log 2, y = log 3, and z = log 10. Express the logarithm in terms of x, y, and z. How would i do the problems if it was : 1)log square root 30 2)log 0.0006 3)log 2.16 Click here to see answer by Alan3354(30993)