During his first year of life,Avery gained 12 3/4 lb. During his second year of life, Avery gained 40% less weight than he did during his first year of life.
How much weight did Avery gain during his second year of life?
Express your answer as a mixed number in simplest form.
lb
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Vocaloid (vocaloid):
you know, if you don't understand something, you can always ask...
anyway, convert 12 3/4 to a decimal...
what is 3 divided by 4?
OpenStudy (anonymous):
ohh ok thxs
Vocaloid (vocaloid):
answer my question please
Vocaloid (vocaloid):
what is 3 divided by 4?
OpenStudy (anonymous):
0.75
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Vocaloid (vocaloid):
good, so 12 3/4 as a decimal is 12.75
now multiply that by 0.6
OpenStudy (anonymous):
7.65
Vocaloid (vocaloid):
good, now convert that back into a mixed number
OpenStudy (anonymous):
how?
Vocaloid (vocaloid):
look at the decimal part
.65 = 65/100
now reduce that fraction
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OpenStudy (anonymous):
opps
OpenStudy (anonymous):
iim so confused
Vocaloid (vocaloid):
start with 65/100
now divide the numerator and the denominator by 5
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
65/100=0.65/5=0.13
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Vocaloid (vocaloid):
nope
what is 65/5?
OpenStudy (anonymous):
13
Vocaloid (vocaloid):
good
so
65/100 = 13/20
so
7.65 is equal to 7 13/20
as a mixed number
and that's our final answer