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i know it is not A
Have you considered the logarithm function?
could you please state the function, i'm a litle rusty at algebra
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Why are you given this problem if you've no logarithm? Is this a placement exam? If it is a placement exam, you should get this problem wrong so that the examiner will know that you need more work in this area.
no this is review packet for finals and i forgot how to do this type of problem
If you say so. One for free.
Introduce the logarithm
\((x+5)\cdot \log(5)=x\cdot \log(9)\)
\(x\cdot \log(5) + 5\cdot \log(5)=x\cdot \log(9)\)
Can you solve this for 'x'?
so the answer is d) 13.69
That's kind of a mess, but you did find the right answer. I would suggest you review this section quite a bit more and brush up on your logarithms and your basic algebra. you switched to your calculator WAY too quickly.