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## anonymous 5 years ago I am struggling with this equation 7= 10(1+e)^x/2 Can anybody help me with it?

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1. anonymous

what about this equation?

2. anonymous

is it $7=10(1+e)^{x/2}$?

3. anonymous

okay, I will just solve the equation written above: first divide both sides by 10, and then take "ln" (natural logarithm) for both sides as: ${7 \over 10}=(1+e)^{x/2} \implies \ln(0.7)={x \over 2}\ln(1+e)$ divide both sides by ln(1+e), and multiply by 2: ${\ln(0.7) \over \ln(1+e)}={x \over 2} \implies x=2{\ln(0.7) \over \ln(1+e)}$ if this is a MC question, you can just simplify your answer according to the choices that you have.

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