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OpenStudy (k12girlohva):
Brian has reduced his cholesterol level by 10% by following a strict diet and regular exercise. If his original level was 200, what is his cholesterol level now?
A.
220
B.
198
C.
20
D.
180
OpenStudy (k12girlohva):
I THINK ITS D
OpenStudy (anonymous):
20
OpenStudy (anonymous):
its C
OpenStudy (isaidavila):
200-10/100*200
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OpenStudy (anonymous):
you have to multiply 200 by .10 which is equivalent to 10%
OpenStudy (k12girlohva):
its C?
OpenStudy (isaidavila):
Is not C is 180
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
explain
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OpenStudy (k12girlohva):
Yea i thought it was D also
OpenStudy (anonymous):
oh sorry i misread that, i thought he had 10% left, it is 180
OpenStudy (anonymous):
i apologize
OpenStudy (isaidavila):
Because he loses 10% percent of the original weight, so he loses 20
Now his weight is 200-20=180
OpenStudy (mathmale):
It's important that you (k12) show your own work, to back up any answer choices that you make.
What is 10% of 200 lb?
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jhonyy9 (jhonyy9):
10% of 200 = 20 so than 200-20=180
OpenStudy (isaidavila):
Don't worry about that
OpenStudy (k12girlohva):
Tbh i actually wasnt sure of how to do this corectly i just thought it was 180 by looking at wat i had.