Answer:
2/16
Step-by-step explanation:
i just doubled he equation
Answer:
-<u>One Equation</u>: is set equal to a variable
Example:
y = 2x + 1
x + 3y = -12
You already have y, plug it back into x + 3y = -12
x + 3(2x + 1) = -12
x + 6x + 3 = -12
7x + 3 = -12
(Subtract 3 from each side)
7x = -15
(Divide by 7)
x = - 2.14
-<u>No Equation</u>: is set equal to a variable
Example:
2x + y = 10
4× + 2y = -3
Subtract 2x from each side of 2x + y = 10, you should get y= -2x + 10. Now that you have found y, substitute y into 4x+ 2y = -3.
4x + 2(-2x + 10) = -3
4x + -4x + 20 = -3
(Subtract 20 from each side)
4x + -4x = -23
(Add 4x and -4x)
0 = -23
No Solution
<u>-Both</u><u> </u><u>Equations</u>: are set equal to a variable
Example:
y = x + 5
y = -x + 3
(you already have y so plug it into the other equation to solve for x)
-x + 3 = x + 5
(Add -x on both sides)
3 = 2x + 5
(subtract 5 from both sides)
-2 = 2x
(Divide by 2 on each side)
x = -1
I hope this helped!
Answer:
9.025 inches
Step-by-step explanation:
Let the length be represented by:
Where 
is the length of candle at time 
is the rate at which the candle is burning.
And 
is the initial length of the candle.
As per the question statement, let us put the given values in the equation.
Subtracting (1) from (2):
Putting the value of in the equation (1):
Therefore, the equation becomes:
Now, we have to find the height of candle after 2 hours.
2 hours mean 120 minutes.
Therefore, the height of candle is <em>9.025 inches</em>.
Factors of 4:
<span>1 and 4 </span>
<span>2 and 2 </span>
<span>
</span>
