No, it is rational.
30
No it is a whole number so it cannot be irrational.
-7 is a rational number
No.
To find the number that, when divided by seven, equals 15, you can set up the equation ( x / 7 = 15 ). By multiplying both sides by 7, you get ( x = 15 \times 7 ), which simplifies to ( x = 105 ). Therefore, 105 divided by seven equals 15.
0.2857
0.4286
30
105
No it is a whole number so it cannot be irrational.
-7 is a rational number
8
You wont be able to add a rational number and an irrational number and get a number not in a fraction ( 3 + 22/7) (21/7 + 22/7 = 43/7) So, yes as you see in the example above it made another irrational number.
No.
Yes - if I had an irrational number x, and I added that to the number (7-x), I would end up with 7.If the number is irrational, it can be subtracted from a rational/integer to make another irrational.
To find the number that, when divided by seven, equals 15, you can set up the equation ( x / 7 = 15 ). By multiplying both sides by 7, you get ( x = 15 \times 7 ), which simplifies to ( x = 105 ). Therefore, 105 divided by seven equals 15.
"Irrational" numbers are the name for numbers that cannot be expressed in fractions; that is, in a "ratio" of one number to another. The number .5 is 1/2; one divided by two. The most useful "irrational" number is the number "pi", the ratio of the diameter of a circle divided by its circumference. There is no fraction that exactly equals "pi", although 22/7 is close. Another irrational number is the number "e", the root of the "natural logarithms". This is extensively used in engineering and electronic calculations.