The sum of two consecutive odd integers is at least 80. n + n + 2 ≥ 80 n + n + 2 > 80 n + n + 1 ≥ 80 n + n + 1 > 80
bottom because if you remove the +1 you could put > or equal to
but surely it should be n+(n+2) >= 80 because, if you have n to be odd, then n+1 will be even so it definitely needs to be n and n+2 otherwise they won't be both odd then to be 'at least' 80, means it can equal or be bigger than So I would have said the top one. But maybe i'm interpreting it incorrectly, maybe wait for a second opinion.
i actuallt got the answer to this there is another question i have a question about
What is the numerator of the fraction equivalent to 4/15* that has a denominator of 60?
sara your right i didnt see that it was consecutive #'s
okay so it means \[\frac{ 4 }{ 15 }= \frac{ ? }{ 60 }\] So if you cross multiply \[\frac{ 60*4 }{ 15 }=?\]
thank you so much !
You are very welcome
Join our real-time social learning platform and learn together with your friends!