julia knows 19 latin words. each day, she learns 6 new words. how many days until she knows 145 words?
A) 20
B) 21
C) 22
D) 23
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OpenStudy (anonymous):
just calculate
hero (hero):
She already knows 19 words, so subtract 19 from 145
OpenStudy (anonymous):
we know she knows 19 already
OpenStudy (anonymous):
everyday she can learn 6 more new words
hero (hero):
Then divide the result of that subtraction by six.
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OpenStudy (anonymous):
so count 6 each time every day plus the 19 she already knows
OpenStudy (er.mohd.amir):
this is arithmetic progession
a=19,d=6
OpenStudy (anonymous):
Sorry I not good at math what would I calculate
OpenStudy (anonymous):
6 times each of the choices one by one plus 19
OpenStudy (anonymous):
until you get 145
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hero (hero):
Re-read my previous two Comments.
OpenStudy (anonymous):
Ok thanks
OpenStudy (anonymous):
I know it is not A
re-read our comments
A.so 6 times 20 plus 19 is:
B.so 6 times 21 plus 19 is:
C.so 6 times 22 plus 19 is:
D.so 6 times 23 plus 19 is:
then you will find your answer