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Mathematics 16 Online
OpenStudy (anonymous):

The sum of three consecutive odd integers is less than 100. What are the greatest possible values of these integers?

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

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?

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?

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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