Answers:
C, D, E
Step-by-step explanation:
A rational number is a integer. It is also a terminating or repeating decimal.
A rational number can be written as a fraction of two integers.
Answer A is not correct because it's decimal never ends. It is also not repeating. A cannot be written as a fraction.
Answer B is not correct because the square root is not a whole number, or a perfect square. The square root has a non-terminating and non-repeating decimal, just like A. B cannot be written as a fraction.
Answer C is rational because it has a terminating decimal.
D and E are integers, which also can be written as fractions.
Out of the options given, C, D, and E have rational numbers, while all others do not.
The answers are C, D, and E.
The formula used for calculating the time is:
t = d / v
where t is time, d is distance and v is velocity
We know that the difference in the two times is 3 hours, therefore:
d / 65 – d / 130 = 3
Calculating for d:
d = 30 / (1/65 – 1/130)
<span>d = 3900 miles</span>
Answer:
Step-by-step explanation:
500(x - 3) =5000
x - 3 = 5000/500
x - 3 = 10
x = 10 + 3
x = 13
<span>The best answer is C.add 2 to both sides of the equation.
</span>5=x-2
5+2=x-2+2
7=x-0
x=7
