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Mathematics 19 Online
zarkam21:

Help help this would be number-mean/sd right

zarkam21:

@Vocaloid

zarkam21:

1 attachment
zarkam21:

just one more after this :/

Vocaloid:

yes, but since we are given the z-score we solve for the weight

Vocaloid:

2 < (x-164.5)/26 solve for x

zarkam21:

x>6.40384615

zarkam21:

Is this it

zarkam21:

6.40?

Vocaloid:

hehe it would be strange for a 18-25 year old male to only weigh 6 pounds wouldn't it ;)

Vocaloid:

multiply both sides by 26 first

zarkam21:

Oh ..

zarkam21:

Ugh I feel so useless cant even do a problem like this :/

Vocaloid:

2 < (x-164.5)/26 52 < x - 164.5 is it a bit more clear now?

Vocaloid:

no worries, there's no shame in reviewing to the basics if you need to

zarkam21:

216.5>

zarkam21:

becayse I added it to 52

Vocaloid:

good!

zarkam21:

so it would be 216.5

Vocaloid:

yup good

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