20-10-2015
Mathematics

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63 is 90% of what number?show the equation

Respuesta :

20-10-2015

90% (or 0.9) of a certain number is equal to 63. Let's call this number Y. Therefore, the equation would be

0.9 x Y = 63

If you divide both sides by 0.9, you get:

Y = 70

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