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

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

User Henrique Mauri
by
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2 Answers

5 votes
6.4 = 90% x X
X =?
Happy to Help!
User Jprbest
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2 votes

1 \% = (1)/(100)\\ \\90 \% * x =6.4 \\ \\(90)/(100)x=6.4 \\ \\(9 )/(10 )x=6.4 \ \ *((10)/(9))\\ \\x= 6.4 *(10)/(9)\\ \\x=(64)/(9)\\ \\x = 7(1)/(9)
User Peter Horsley
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