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klemol [59]
3 years ago
5

Translate the following Half a number decrease by twelve

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
5 0

Hi!

So, to "half" a number, you multiply it by 1/2 or 0.5

"A number" is a number which we don't know the value of, so we could use a variable. Any letter you want is fine, but let's use x

"Decrease by 12" This simply means to subtract 12, so - 12

So, now we have:

1/2x - 12

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4 years ago
What's the length of an arc with a central angle of 100° and a radius of 2 inches?
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