A cross-country skier traveled at a rate of 40 miles per hour on downhills and 20 miles per hour on flat terrain while skiing a
2 answers:
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Answer:
-19 - Integer
-5 - Integer
12 - Whole Number
14.25 - Rational Numbers
Step-by-step explanation:
Whole numbers = {0, 1 , 2, 3, . . . }
They are the the natural numbers and zero.
Integers: {. . . , -3, -2, -1, 0 , 1, 2, 3, . . . }
Rational Numbers: These are the numbers that can be written in the form of where
.
Note that All Whole numbers are integers.
All Integers are in turn Rational Numbers. (When q = 1, we get all the integers.).
In the given problem, we have: -19 Negative number. It should be an Integer.
Similarly -5 is also an integer.
12 is a whole number. Note that it is also an integer. Consequently, a rational number.
And 14.25 = is in the form of
. So it is a rational number.