The 10s are smaller. Please show work and explain what you are doing so I will know how to complete this type of problem in the future.
2007-06-19 09:46:54 · 3 answers · asked by Mothra 1 in Science & Mathematics ➔ Mathematics
When two logs are beig subtracted like log 10 x- log 10 2, it would be equal to log 10 (x/2)
Now you have
log 10 (x/2)=log 10 7
You cancel out the logs and are left with
x/2=7
Thereore crossmultiply
x=14
2007-06-19 10:06:26 · answer #1 · answered by Anonymous · 1⤊ 0⤋
assume base 10 so equation can be written as
log 7 = log x - log 2 =>
log 7 = log (x/2) =>
7 = x/2 =>
14 =x
2007-06-19 09:53:01 · answer #2 · answered by timemccormick 3 · 2⤊ 0⤋
In the following , log means log to base 10:-
log 7 = log x - log 2
log x = log 7 + log 2
log x = log 14
x = 14
2007-06-19 10:28:22 · answer #3 · answered by Como 7 · 1⤊ 0⤋