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OpenStudy (anonymous):
The sum of three consecutive odd integers is less than 100. What are the greatest possible values of these integers?
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OpenStudy (swissgirl):
Odd number = 2n+1
OpenStudy (swissgirl):
So our 3 consecutive odd numbers would be
2n+1
2n+3
2n+5
Our inequality would be:
2n+1+2n+3+2n+5<100
OpenStudy (swissgirl):
Now we have to gather like terms
OpenStudy (swissgirl):
Can u do that?
OpenStudy (anonymous):
6n + 9 < 100
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OpenStudy (swissgirl):
Right. Then we have to subtract 9 from both sides
OpenStudy (swissgirl):
So what did u get?
OpenStudy (anonymous):
6n < 91
OpenStudy (swissgirl):
Correct. Then we gotta divide 6 from both sides
OpenStudy (anonymous):
15.16?
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OpenStudy (swissgirl):
Yes smth like that
n<15.6
So what is the greatest integer value that n can have?
OpenStudy (anonymous):
31+33+35=99
OpenStudy (swissgirl):
N has to be less than 15.6 and an integer
OpenStudy (swissgirl):
Let James solve it on his own
OpenStudy (swissgirl):
So what do u think n will equal?
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OpenStudy (swissgirl):
Ok i am not sure if u have to show ur work but if you do n=15
Now plug n=15 back into the 3 consecutive numbers above and u will get 31,33 and 35
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