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OpenStudy (samsan9):
this has been asked a few times already but its mostly people doing algebra 2 here
OpenStudy (anonymous):
i can probably help
OpenStudy (anonymous):
i just want to now if your takeing the course
OpenStudy (anonymous):
no im taking algebra 1 right now
OpenStudy (anonymous):
who is your teacher
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OpenStudy (anonymous):
Goransom
OpenStudy (anonymous):
Goranson
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
so u can help me
OpenStudy (anonymous):
i can try
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OpenStudy (anonymous):
The simple interest formula I equals prt gives the interest earned on an investment of p dollars at interest rate r for a time of t years. How much does Hector need to invest at a rate of 2% in order to earn $25 interest in 3 years?
OpenStudy (anonymous):
alright to find the amount invested take 25 divide by 3 then divide by .002
OpenStudy (anonymous):
$25=p(2%)(3)
OpenStudy (anonymous):
25/3=8.3333/.02?
OpenStudy (anonymous):
about $417
about $42
about $25
about $1.50
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OpenStudy (anonymous):
a
OpenStudy (anonymous):
c
OpenStudy (anonymous):
iam confused
OpenStudy (anonymous):
@ninjasandtigers dont just give the answer please let them do the work
OpenStudy (anonymous):
8.3333/.02=416.66
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OpenStudy (anonymous):
he did have all the work, and pie, make sure you divide correctly. how are you confused
OpenStudy (anonymous):
no they didnt we are not aloud to do all the work for them
OpenStudy (anonymous):
@i.like.pie
OpenStudy (anonymous):
i didn't, he had all the way to the last step of dividing 8.3333/.02
OpenStudy (anonymous):
no he gave the problem didnt do any of the work
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OpenStudy (anonymous):
stop fighting
OpenStudy (anonymous):
i do have to learn
OpenStudy (anonymous):
not arguing, just discussing
OpenStudy (anonymous):
@i.like.pie 25/3=?
OpenStudy (anonymous):
sure
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OpenStudy (anonymous):
also, how are you confused by this
OpenStudy (anonymous):
can u explain it step by step
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
so $25 is your interest rate so you would replace I with $25
I=prt
$25=prt
OpenStudy (anonymous):
ok
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OpenStudy (anonymous):
your percentage rate is 2% so you would replace r with 2%
$25=p(2%)t
OpenStudy (anonymous):
and your time is 3 years so you need to replace t with 3
$25=p(2%)(3)
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
and you know that you are trying to find the price. So you need to get p by itself
OpenStudy (anonymous):
how would you get p by itself in the equation:
$25=p(2%)(3)
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OpenStudy (anonymous):
use it as a variable
OpenStudy (anonymous):
what would you do to the numbers by p to get p by itself
OpenStudy (anonymous):
iam not sure sorry
OpenStudy (anonymous):
you would divide both sides by 3 and 2%
OpenStudy (anonymous):
divide 25 by 25 then by .02
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OpenStudy (anonymous):
you do this because it would cancel out the 3 and 2% next to p so p would be by itself
OpenStudy (anonymous):
25 by 3*
OpenStudy (anonymous):
1250
OpenStudy (anonymous):
25/3=??
OpenStudy (anonymous):
divide
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OpenStudy (anonymous):
yes
OpenStudy (anonymous):
0.12
OpenStudy (anonymous):
no
OpenStudy (anonymous):
25 divided by 3 equals 8.3333
OpenStudy (anonymous):
sorry
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OpenStudy (anonymous):
its fine :)
OpenStudy (anonymous):
now divide 8.3333 by .02
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
41.66666666666666667
OpenStudy (anonymous):
you divided by .2, you need to divide by .02
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