Answer:
v = 10
Step-by-step explanation:
8 = 8v - 4(v+8)
Solve parenthesis
8 = 8v - 4v - 32
Subtract 4v from 8v
8 = 4v - 32
Add 32 on both sides
40 = 4v
Divide by 4 on both sides
10 = v
Answer:
Look at the pics above
Step-by-step explanation:
Here you go!
I accidentally solved the sixth inequality first and the fifth after. That's why I drew next to the numbers, FYI)
and in the seventh inequality, my s looks like a 5. Yeah .... srry about that
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.
Answer:
Step-by-step explanation:
(-1,5) (0,2)
y2= 2, y1 = 5, x2 = 0, x1 = -1
Slope m = [y2 - y1]/[x2 - x1]
m = {2 - 5}/{0+1}
m = -3/1
m = -3
And
y - y1 = m(x - x1)
y - 5 = -3(x + 1)
y - 5 = -3x - 3
y = -3x - 3 + 5
y = -3x + 2