Y is an irrational number between 3 and 4 . what is the value of y

Mathematics

1 answer:

Paraphin [41]3 years ago

7 0

Answer:

If a and b are two positive rational numbers such that ab is not a perfect square of a rational number, then ab is an irrational number lying between a and b.

So an irrational number between 3 and 4 is=3×4=3×4=3×2=23

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Divide 42 in a ratio of 1:2:3?

Cloud [144]

Ratio 1:2:3 means we have x, 2x and 3x as the three parts

x+2x+3x = 42
6x = 42
6x/6 = 42/6
x = 7

Since x = 7, this means 2x = 2*7 = 14 and 3x = 3*7 = 21

Dividing 42 into the ratio of 1:2:3 means we have 7:14:21 as the answer

If we divide all three parts of 7:14:21 by the GCF 7, we reduce it down to 1:2:3

As a check,
7+14+21 = 21+21 = 42
so it works out

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