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Biology 8 Online
OpenStudy (anonymous):

If you, personally, have a volume of 55000 cm3 what is your weight in gold? (The density of gold is 19.3 `g/(cm^3)`. I can't figure out how to convert the answer of this into grams

OpenStudy (aaronq):

\(\rho=\dfrac{m}{V}\) \(\rho\)=density, btw.

OpenStudy (anonymous):

so my answer is 3.509 g?

OpenStudy (anonymous):

I orginally did the equation: volumeXdensity=mass and I came out with 55000x19.3, but I don't know how to convert the answer to gram

OpenStudy (aaronq):

The answer IS in grams, look at the units.

OpenStudy (anonymous):

so the answer is 1061.500grams?

OpenStudy (aaronq):

is what you got when you multiplied the two values together?

OpenStudy (anonymous):

well I had 1061500 The decimal has to go somewhere

OpenStudy (aaronq):

you can't just add a decimal place wherever you want, because 1061500 g=/=1061.500 lol if you need to keep the same decimal places add a zero at the end, 1061500.0 g

OpenStudy (aaronq):

if you need to keep sig figs use scientific notation

OpenStudy (anonymous):

got it. the answer was simple. I just needed to trust it! :) I'm horrible at math. and this is one of my science questions. thanks!

OpenStudy (aaronq):

no problem !

OpenStudy (anonymous):

want one more? Can you help me with this? If a plate is moving 5.2 (cm)/(yr), what distance [in kilometers (km)] will the plate move in 1 million years? To solve this problem, you need to convert 5.2 (cm)/(yr) to (km)/(my). (my = million years)

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