A rational number is a number that can be made by dividing two integers. An integer is a number that doesn't have a fraction part.

1. 2.4 - rational
2. 74 - rational
3. 17.3333333… - rational
4. π -irrational
5. there is no number
6. –18 - rational
7. there is no number
8. 87.125 - rational
9. –30 - rational
10. –8.3 -rational
11. 58.25 -rational
12. 121 -rational
13. 4.5 -rational
14. 3 7/10 -rational

As you can see, most numbers are rational. But, when you come across pi or when you have a decimal that goes on forever without repeating (like some square roots), it tends to be irrational.

3 0

3 years ago

The sum of two numbers is 40. The second number is 5 less than twice the first number. Let x represent the first number and let

SashulF [63]

Step-by-step explanation:

x+y=40

y=2x-5

$x = 40 - y \\ y = 2(40 - y) -5 \\ y = 80 - 2y - 5 \\ 3y = 75 \\ y =25 \\ x = 40 - y \\ x = 15$

7 0

3 years ago

I need help with this

fiasKO [112]

That comes out to

100000
----------- = 10^0 (which is equal to 1)
100000

5 0

3 years ago