SOLUTION: Solve each equation. Round to the nearest hundredth. () means base number log 5x = 3 log x = 42. 102x = 40 10^2x=40 log (7x + 3) = 2 2log x - log 5 = 4 log

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Solve each equation. Round to the nearest hundredth. () means base number log 5x = 3 log x = 42. 102x = 40 10^2x=40 log (7x + 3) = 2 2log x - log 5 = 4 log      Log On


   

Question 188604: Solve each equation. Round to the nearest hundredth.
() means base number

log 5x = 3
log x = 42. 102x = 40
10^2x=40
log (7x + 3) = 2
2log x - log 5 = 4
log(5)(3x + 10) - 3 log(5)4 = 2
Answer by feliz1965(151) About Me  (Show Source):
You can put this solution on YOUR website!
Here is a tip:
No one is going to solve all these questions if you place them all together in a single post.
Post each question separately.
I will do log (7x + 3) = 2 only.
Here, the base = 10 and exponent = 2.
We isolate 7x + 3 on one side of the equation.
10^2 = 7x + 3
100 = 7x + 3
100 - 3 = 7x
97 = 7x
97/7 = x
I will let you finish. To do so, divide 97 by 7 and then round off to the nearest hundredths. Can you take it from here?