For future reference, use a * to show the multiplication sign because in math x is a variable. 7*2 = 9 + x
Now multiply 7*2= 14
14 = 9 + x
Now subtract 9 from both sides to isolate the x
5 = x or x= 5
The average number that the employee works is 6 hours
15 people
8 older than 30
9 have facial hair
over 30 and facial hair= 5/15
5/15= 33.3%
Answer:
x = -4/3
Step-by-step explanation:
6x + 11 = -6x - 5
12x = -16
x = -4/3
Answer: The length of the candle was 13.5 inches before it was lit.
Step-by-step explanation:
Let the length of candle in the beginning be c.
Constant rate of change in length of candle= -1.6 inches per hour
Since rate of change is constant so the length of candle can be represented by a linear function [Linear function has constant rate of change.]
Linear function : f(x)= mx+c , where x= independent variable.
m= constant rate of change and c= initial value of function.
Let x = Number of hours after the candle was lit.
Put m= -1.6 , x= 3 and f(x)= 8.7 , we get

Hence, the length of the candle was 13.5 inches before it was lit.