Show:
Irrational Numbers
First step
One-step
Two-step
Multiple steps
100
Is 3 an irrational number?
No - it ends
100
What is the first step in 4x=12?
Divide by 4 on both sides.
100
4j = 12
j=3
100
5a + 3 = 28
a = 5
100
3(r+2) = 18
r = 4
200
Is the square root of 2 an irrational number?
Yes - non-ending/non-repeating decimal.
200
What is the first step in 4x-3=15?
Add 3 to both sides.
200
9a = 54
a = 6
200
3b - 2 = 7
b = 3
200
5(b-3) + 6= 16
b=5
300
Is 3/8 an irrational number?
No - it ends
300
What is the first step in (6x+2)/3=40?
Multiply both sides by 3 to get rid of fraction
300
51g = 357
g = 7
300
17 = 8c - 7
3 = c
300
7n - 4(n+3) = 12
n=8
400
Is the square root of 18 an irrational number?
Yes - non-ending/non-repeating decimal
400
What is the first step in 5(r-9) = 57
Distribute the 5
400
4.5y = 9
y=2
400
-3 = -2d +5
d = 4
400
5(a+1) + 4(a-1) =
a=2
500
What is the definition of an irrational number?
An irrational number is non-repeating and non-ending.
500
What is the first step in 5(c+9) - 3(c-1) = 17
Distribute the 5 and the -3
500
7.9h = 25.28
h = 3.2
500
-2e -7 = -11
e = -9
500
8(g+2) + 3(g) - 7 = 31
g=2