police76
04.10.2020 •
Mathematics
Decreasing 0.75 times a number(x) by 18 is equal to increasing 0.5 times a number(x) by 5. and i need the equation
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Ответ:
hi!
an irrational number is a number that cannot be converted to a ratio or fraction. let's go through each answer. a.2/7 = 0.285714286
0.285714286 + 0.4 = 0.685714286
this is rational because it can be written as a fraction. 685714286/1000000000
b. 3π3π = 9.42
9.42 + 0.4 = 9.82
this is rational. (9 82/100)
c. √9√9 = 3
3 + 0.4 = 3.4
this is rational (3 2/5)
d. 0.0. + 0.4 = 4.
this is irrational because you can't convert an infinitely repeating decimal to a fraction.
the answer is d. 0.hope this ! : )
-peredhel