The answer to problem 14 is the equation c = 3i/e
To get this answer, you multiply both sides by 3 to undo the division of 3. Also, you divide both sides by 'e' to undo the multiplication of 'e'.
So it would look something like this
i = ec/3
3*i = 3*ec/3 ... multiply both sides by 3
3*i = ec
ec = 3i
ec/e = 3i/e ... divide both sides by e
c = 3i/e
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Problem 15)
P = 2L + 2W
2L + 2W = P
2L + 2W-2L = P-2L ... subtract 2L from both sides
2W = P-2L
2W/2 = (P-2L)/2 ... divide both sides by 2
W = (P-2L)/2
So the final answer is W = (P-2L)/2
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So the "back" of the arrow is on/above -20.
The arrow points to -12.
You added something to -20 to get to -12.
So the first number is -20. You added ? to get -12. -12 is the last number / the answer to the equation.
So the equation from what you have so far is -20 + ? = -12
You need to isolate the ? so that you know what it is.
So to get rid of the -20 (make it 0), you have to add 20. -20 plus 20 equals 0, which basically means it is gone. You also have to add 20 to -12. 20 plus -12 equals 8.
Now the equation is ? = 8.
So you know that the second number is 8.
The equation makes sense; -20 + 8 = -12.
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Answer:
480
Step-by-step explanation:
We will use the order of PEMDAS. First, everything in parenthesis must be completed. Since 6x4 is in parenthesis, we multiply it and get 24.
Since we now have 20(24). We can multiply them by each other.
A trick to do this manually is to notice that 20 is 10 x 2, meaning that in reality this equation is 10 x 2 x 24. Multiply 2 x 24 = 48, and 48 x 10 = 480.
Answer:
13y+15
Explanation:
4y-2.5+ 4y-2.5+ 2.5y+10+ 2.5y+10=13y+15
Answer:
26.74
Step-by-step explanation:
(12.95x2)+35.89+11.47=73.26
100-73.26=26.74
