Write the repeating decimal, 753.753753 . . . , as the ratio of two integers in lowest terms.
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OpenStudy (kc_kennylau):
Let it be x.
OpenStudy (kc_kennylau):
Find 1000x.
OpenStudy (anonymous):
here is what i did
x=753.753753
1000x=753753.753
then by subtracting
999x=752999.9992
so x=753.753753
this is what I got
but it is not included in the choices , here they are
A) 753,000/999
B) 753,000/99
C) 753,753/333
D) 251,000/999
E) 251,000/333
any help?
OpenStudy (kc_kennylau):
You forgot to write ellipsis
OpenStudy (kc_kennylau):
Which mean a lot
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OpenStudy (kc_kennylau):
x=753.753753......
1000x=753753.753753......
OpenStudy (anonymous):
oh ok so I take it from here and solve
OpenStudy (kc_kennylau):
Yep
OpenStudy (anonymous):
got it so it will be 753000/999 A
OpenStudy (kc_kennylau):
Very close :)
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OpenStudy (anonymous):
thank you :)
OpenStudy (kc_kennylau):
But nope that's not the answer
OpenStudy (anonymous):
really , not A?
OpenStudy (kc_kennylau):
You overlooked three words
OpenStudy (anonymous):
where did i go wrong?
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OpenStudy (kc_kennylau):
"in lowest terms"
OpenStudy (anonymous):
what does it mean then ?
OpenStudy (kc_kennylau):
It means simplify :)
OpenStudy (anonymous):
so the greatest common factor of 3
so it will be 251000/333 E
OpenStudy (kc_kennylau):
Perfect
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