eric has been donating books he no longer needs to his local library. after 3 months of donating, he had 157 books left in his r
oom. after 8 months of donating, he had 102 books left in his room. how many books per month did eric donate on average between monhs 3 and 8?
2 answers:
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Answer:
Given :A star in the sky appears to move by 12 arc seconds over the course of 6 months.
To Find :Convert this number into first arc minutes then degrees.
Solution:
60 arc seconds = 1 arc minute
1 arc seconds = arc minute
12 arc seconds = arc minute
12 arc seconds = arc minute
So, 12 arc seconds = arc minute
Now convert it into degrees
60 arc minute = 1 degree
1 arc minute = degree
arc minute =
degree
arc minute =
degrees
12 arc seconds = degrees
, and
. Subtracting this from the numerator gives a remainder of
, and
. Subtracting this from the previous remainder gives a new remainder of
is not a multiple of
, so we're done. Then