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Mathematics 16 Online
OpenStudy (abbycross167):

Can someone please help me? I really need help... I will fan and Medal Question~ Examine the following solution to a conversion problem. Do you see a mistake? If so, identify the location of the first mistake and explain why it is incorrect.

OpenStudy (abbycross167):

OpenStudy (anthony1914):

how did 3.25kg convert to 1 kg

OpenStudy (anthony1914):

it doesent

OpenStudy (anthony1914):

there both kg so they dont convert

OpenStudy (abbycross167):

what do you mean?

OpenStudy (anthony1914):

it should have been 3.25 Kg = 3250g and 3250g = 3250000mg

OpenStudy (anthony1914):

still there

OpenStudy (abbycross167):

@anthony1914 I'm very sorry my WiFi is really slow right now...

OpenStudy (anthony1914):

do you understand or do i need to explain

OpenStudy (abbycross167):

would you mind explaining?

OpenStudy (anthony1914):

easy explanation would be 3.25 milligrams should be converted as 3250000 milligrams because that is the correct conversion

OpenStudy (anthony1914):

sorry if my explanation is vague

OpenStudy (skullpatrol):

You need to set up the units so that they "cancel out."

OpenStudy (abbycross167):

Could you show me what you mean?

OpenStudy (skullpatrol):

1 kg = 1000g can be written as 1 kg / 1000g or 1000g / 1 kg

OpenStudy (anthony1914):

|dw:1459628417833:dw|

OpenStudy (skullpatrol):

To convert 3.25kg into grams use 1000g / 1kg

OpenStudy (abbycross167):

So the file that I attached is wrong?

OpenStudy (anthony1914):

your question was is there a mistake in the graph

OpenStudy (abbycross167):

yes sir/ma'am

OpenStudy (anthony1914):

so yes there is a mistake

OpenStudy (skullpatrol):

$$\Huge 3.25kg * \dfrac{1000g}{1kg}$$

OpenStudy (skullpatrol):

See how the kg "cancels out"

OpenStudy (anthony1914):

(4) is wrong

OpenStudy (anthony1914):

@abbycross167

OpenStudy (abbycross167):

So 3.25 mg is the only thing that is wrong and that is because it does not cancels out?

OpenStudy (anthony1914):

brb

OpenStudy (anthony1914):

yes bye

OpenStudy (abbycross167):

oh ok umm bye thank you for your help

OpenStudy (skullpatrol):

Step (2) is the mistake because the units don't cancel.

OpenStudy (skullpatrol):

How can 3.25kg =?= 3.25mg?

OpenStudy (abbycross167):

oh okay, I understand now

OpenStudy (skullpatrol):

Good job :-)

OpenStudy (abbycross167):

thank you for all your help!!

OpenStudy (skullpatrol):

Thanks for trying to learn

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