robcancho robcancho

02-08-2017
Mathematics

contestada

Twenty times the square of a non-zero number is equal to 15 times the number

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dhardra dhardra

02-08-2017

i think that the answer is 5

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choixongdong choixongdong

02-08-2017

20x^2 = 15x
20x^2 - 15x = 0
5x(4x - 3) = 0
5x = 0, x =0
4x -3 = 0, x = 3/4

answer
non-zero number is 3/4

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