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BaLLatris [955]
3 years ago
12

Is 1/4(8y-12) equivalent to 2y-12 explain why or why not

Mathematics
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

No

Step-by-step explanation:

First simplify the first expression.

Distribute.

1/4(8y-12) = 1/4 * 8y + 1/4 * -12

8y * 1/4 = 8y / 4 = 2y

-12 * 1/4 = -12 / 4 = -3

1/4(8y-12) = 2y - 3

2y - 12 != 2y - 3

So it is not equivalent.

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Twice one number is 15 less than a second number. when 13 is added to the second number,the result is 7 less than 9 times the fi
inna [77]
Anwser is 15 beacuse i got the anwser right now

8 0
4 years ago
List all the ways to select two members from S with repetition. The order in which the members are selected is not important. Fo
Taya2010 [7]

9514 1404 393

Answer:

  KK KL KM KN KP LL LM LN LP MM MN MP NN NP PP

Step-by-step explanation:

Instead of starting with adjacent letters in the list, we start with the same letter. There are 15 possible pairs.

  KK KL KM KN KP LL LM LN LP MM MN MP NN NP PP

__

<em>Additional comment</em>

We leave out pairs with letters previous, because you've said KL is the same as LK, and KL has already been listed. The problem with this list is that it misstates the probabilities of randomly obtaining a given pair. It is not 1/15, but is 2/25 for all but letter duplicates. For duplicates (KK), the probability is 1/25, not 1/15.

4 0
3 years ago
What factors multiply to -80 and add to 6
forsale [732]

80 = -1(80), -2(40), -4(20), -5(4),

Total answers include: -81, 79, -42, 16, -9, and 1.

None of them add up to 6!

Are you doing polynomial equations?

If so, you can solve it the hard way.

x^2 + 6x -80 = 0

(x^2 + 6x + 9) - 80 = 9

(x+3)^2 = 89

(x+3) = 9.43

x = 6.43

If you're not doing those then I'm afraid your question has no answer.

Hope that helps!



7 0
3 years ago
Help.. please... my due is in 5 minutes ​
Diano4ka-milaya [45]
<h3>Answer:</h3>

y = x - 5

<h3>Step-by-step explanation:</h3>

If 5 is being subtracted from x, then it would look like x-5.

Since x-5 represents 5 being subtracted from x, y=x-5 is the correct answer because the other options aren't representing 5 subtracted from x.

3 0
2 years ago
Use the net to determine the total surface area. The net of a prism with width 10 inches, length 5 inches, and height 7 inches i
leva [86]
We are asked to solve for the surface area of the described figure in the problem. We can conclude that the given figure is a rectangular prism since it was being mentioned in the problem that the height is laid flat. Therefore, the formula for the surface area is SA = PH + 2B where "P" stands for the perimeter of the rectangle and "B" stands for the area of the rectangle while "H" is for the height.
Solving for P, we have it:
P = width + length + width + length
P = 10 + 5 + 10 + 5
P = 30 inches
Solving for B, we have it:
B = length * width 
B = 10 * 5
B = 50 inches squared
Solving for the surface area, we have it:
SA = PH + 2B
SA = 30*7 + (2*50)
SA = 310 inches squared

The answer is 310 in2.
6 0
3 years ago
Read 2 more answers
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