3 years ago

Is 1.999 an irrational number

2 answers:

7 0

Rational Number. 1.999 is a repeating decimal. Repeating decimals, fractions and whole numbers are all rational numbers.

babymother [125]3 years ago

4 0

No, 1.999 is a rational number.

Hope this helped! :)

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One month, Ruby worked 4 hours more than Isaac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 104 hour

nadya68 [22]

Let Isaac = x
Ruby = x + 4
Svetlana = 4(x + 4)

Together they worked 104 hours, so...

x + x + 4 + 4(x + 4)= 104
x + x + 4 + 4x + 16 = 104
6x + 20= 104
6x = 84
x = 84/6 = 14

Isaac worked x = 14 hours

Ruby worked x + 4 = 18 hours

Svetlana worked 4(x + 4) = 4×18 = 72 hours

Check your answers...

72 + 18 + 14 = 104
104 = 104 it checks!

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weeeeeb [17]

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