Mathematics
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OpenStudy (anonymous):
After a 5% pay raise, this years salary is 37,800 find last years salary?
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OpenStudy (lynfran):
5/100*37800=??
OpenStudy (lynfran):
whats that equal too?
OpenStudy (lynfran):
then u take way that frm 37800
OpenStudy (anonymous):
or you could just subtract 5% from $37,800 & get the same answer
OpenStudy (anonymous):
I have a new problem now. I have been doing this same homework assignment for 3 hours and I'm so frustrated.
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OpenStudy (anonymous):
This is the new problem
OpenStudy (zzr0ck3r):
\(x+0.05x=37800\)
Solce for \(x\)
OpenStudy (lynfran):
@emily_wilson what answer did u get?
OpenStudy (anonymous):
for the first or second?
OpenStudy (lynfran):
the first one
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OpenStudy (anonymous):
I got $35,910
OpenStudy (lynfran):
ok correct
OpenStudy (anonymous):
For the second one, I'm pretty sure you just take 3% & add it to $31.415
OpenStudy (lynfran):
the second 1 is the same process
OpenStudy (anonymous):
31,414.97?
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OpenStudy (anonymous):
I got 32,357.45
OpenStudy (lynfran):
(3/100)*31415=942.45
then 31415-942.45=30.472.55
OpenStudy (anonymous):
I'm so done with this. I give up
OpenStudy (lynfran):
shd be 30,472.55
OpenStudy (anonymous):
it was 30,500
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OpenStudy (lynfran):
yes when rounded
OpenStudy (anonymous):
I give up.
OpenStudy (anonymous):
why would you multiply on the second one?
OpenStudy (lynfran):
you find the amount for the 3% increase
OpenStudy (lynfran):
or is u used zzr0ck3r approach u would get that
so
x+0.03x=31415
1.03x=31415
x=31415/1.03
x=30500