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06-04-2015
Mathematics

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80% of what number is 64

Respuesta :

06-04-2015

Make an equation.

80% = 0.8

'of' is multiplication

'what number' is 'x'

'is' is an equal sign

0.8 * x = 64

0.8x = 64

Divide 0.8 to both sides:

x = 80

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