Question

1. Which inequality is NOT true?
A 30 g > 300 mg
B 100 mg > 100 kg
C 999,999 mg < 1 kg
D 5 g < 50 kg

Answer 1

have you tried to answer it yourself

Answer 2

yes many times still very confused

Answer 3

g

Answer 4

kg

Answer 5

If you know a few conversions you can get everything into the same units to make comparison easier.

\[1kg=1000g\]\[1g=1000mg\]

So to make a conversion factor out of these equations, you take which one you need and multiply to make it 1 like this:
\[1kg=1000g\]\[1=\frac{1000g}{1kg}\]
So now you can multiply this, which is just a fancy way of writing the number 1, by something you want to convert.

So for example, 5 g < 50 kg we can multiply the right part by our new version of 1. \[ 5 g < 50 kg *\frac{1000 g}{1kg}\] and notice the kg cancel out when you divide them just like a fraction. \[ 5 g < 50 *1000 g\]

Now you can compare them!

Answer 6

Just because 1 kg is heavier than 1 g, that really won't help you a whole lot here @mth3v4 . I could ask, what's heavier? 10000g or 1kg? Of course you might want to say 1kg is heavier since a kg is heavier than 1 g. But 10000g is really 10kg, so in reality the 10000g is heavier. So you really need to convert.

Answer 7

@mth3v4 You're wrong here:

"g
mg
kg

g being the heaviest"

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1 kilogram > 1 gram > 1 milligram

A kilogram is the heaviest and milligrams are the tiniest unit of measurement here.

Answer 8

fail XP