Step Statements
Reasons
1
6x - 9 = 45
given
2
6x - 9 + 9 = 45 +9
3
6x = 54
4
5
X = 9
addition property of equality
subtraction property of equality
multiplication property of equality
division property of equality
simplification

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%