Answer:
21
Step-by-step explanation:
12/4.+18
The lcm is 4.
12+4(18) all divided by 4
12+72=84
84/4=21
<span>Given data show that 129 college students out of 192 have part time jobs.
proportion p = 129/192 = 0.672
The estimated population proportion is p* = 0.672
Standard error = squareroot of [p*(1 - p*)/n] = 0.034
Value for 95% confidence interval = 1.96
margin of error = 1.96 x 0.034 = 0.067</span>
Answer:
see explanation
Step-by-step explanation:
The bar above the 3 indicates the 3 is being repeated, that is
0.13333....
We require to make 2 equations with the repeating 3 after the decimal point.
let x = 0.13333... , then multiply both sides by 10 then 100
10x = 1.3333 ← equation with repeating 3 after the decimal point
100x = 13.3333 ← second equation with repeated 3 after the decimal point
Subtracting the equations eliminates the repeated 3, that is
100x - 10x = 13.333 - 1.333
90x = 12 ( divide both sides by 90 )
x =
← divide numerator/denominator by 6, hence
0.1333... = 