anonymous
  • anonymous
i just need to solve 0.037=x+1 please help
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
i think i need to divide both sides by x+1
Vocaloid
  • Vocaloid
Subtract 1 from each side
anonymous
  • anonymous
-0.963?

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More answers

anonymous
  • anonymous
@Vocaloid could you help me with 2 more?
Vocaloid
  • Vocaloid
Sure
anonymous
  • anonymous
The Mendes family bought a new house 9 years ago for $108,000. The house is now worth $165,000. Assuming a steady rate of growth, what was the yearly rate of appreciation? Round your answer to the nearest tenth of a percent (1.2% etc)
Vocaloid
  • Vocaloid
First find (change in price)/(number of years)
anonymous
  • anonymous
18333.33
Vocaloid
  • Vocaloid
(165000-108000)/9 = ?
anonymous
  • anonymous
6333.33
Vocaloid
  • Vocaloid
right, now we find the percentage compared to the original price 100*(6333.33/108000) = ?
anonymous
  • anonymous
5.864?
Vocaloid
  • Vocaloid
right, then round to the nearest 10th
anonymous
  • anonymous
5.9?
Vocaloid
  • Vocaloid
right, so our answer is 5.9%
anonymous
  • anonymous
An anthropologist finds bone that her instruments measure it as 0.494% of the amount of Carbon-14 the bones would have contained when the person was alive. How long ago did the person die? The half life of carbon 14 is 5,730 years. Round your answer to the nearest thousand.
Vocaloid
  • Vocaloid
portion remaining = (2)^(number of years/half-life) .494/100 = (2)^(x/5730) solve for x
anonymous
  • anonymous
i couldnt solve it
anonymous
  • anonymous
@Vocaloid help, i couldnt solve it
Vocaloid
  • Vocaloid
.494/100 = (2)^(x/5730) log(.494/100)/log(2) = x/5730
anonymous
  • anonymous
@Vocaloid keep getting error and i cant solve it :(
Vocaloid
  • Vocaloid
small correction log(.494/100)/log(0.5) = x/5730 7.66 = x/5730 x = 44,000 years (rounded)
anonymous
  • anonymous
okay one more easy one e^2x+1=5.324
andrearchat
  • andrearchat
X=-.73
anonymous
  • anonymous
1.672=2x+1 , now what? @Vocaloid
anonymous
  • anonymous
wait no its 1.672=2x-1
Vocaloid
  • Vocaloid
|dw:1438019083848:dw| is this what the problem looks like?
Vocaloid
  • Vocaloid
or this? |dw:1438019123161:dw|
anonymous
  • anonymous
its 2x-1 but yes
Vocaloid
  • Vocaloid
does it match the first drawing or the second drawing?
anonymous
  • anonymous
first
Vocaloid
  • Vocaloid
ok, so we have e^(2x-1) = 5.324 take the natural log of both sides
anonymous
  • anonymous
ln5.324=2x-1
Vocaloid
  • Vocaloid
right, now solve for x
Vocaloid
  • Vocaloid
add 1 to both sides, then divide both sides by 2
Vocaloid
  • Vocaloid
[ (ln5.324)+1 ] / 2 = x
anonymous
  • anonymous
1.336?
Vocaloid
  • Vocaloid
yes

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