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01-12-2016
Mathematics

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What is the product of 1.5 and 2.8 is 4.2?

Respuesta :

cecemeanasf cecemeanasf

01-12-2016

2.8 x +1.5 = 4.2 (x – 10)
2.8 x + 1.5 = 4.2 (x – 10)
28 x/10 + 15/10 = 42/10 (x – 10)
28 x + 15 = 42 (x – 10)
28 x + 15 = 42x – 420
14 x – 405 = 0
x = 31.07

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