terrymcdowell terrymcdowell

03-02-2017
Mathematics

contestada

6r+3<10r+3<10+9r what is the answer

Respuesta :

03-02-2017

I think the answer is r < -1/2

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apologiabiology apologiabiology

03-02-2017

minus 6r from everybody
3<4r+3<10+3r
minus 3 from everybody
0<4r<3r+7
hmm
0<4r, r must be a natural number
since 0<4r is true, then 0<r is also true
minus 3r everybody (weird math)
0<r<7

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