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BARSIC [14]
3 years ago
10

Translate question into an equation, let x be unknown number 6.4 is 90% of what number?

Mathematics
2 answers:
lisov135 [29]3 years ago
8 0
1 \% = \frac{1}{100}\\ \\90 \% * x =6.4  \\ \\\frac{90}{100}x=6.4  \\ \\\frac{9 }{10 }x=6.4 \ \ *(\frac{10}{9})\\ \\x= 6.4 *\frac{10}{9}\\ \\x=\frac{64}{9}\\ \\x = 7\frac{1}{9}
soldi70 [24.7K]3 years ago
4 0
6.4 = 90% x X
X =?
Happy to Help!
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