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brilliants [131]
3 years ago
11

Zaria want you to solve this puzzle I am thinking of a number if you divide my number by two and subtract for you will get to wh

at is my number show how you know your answer is correct
Mathematics
1 answer:
Orlov [11]3 years ago
8 0
To solve this problem, let's set up an equation, letting n represent the number that you are trying to find. n/2 - 4 = 2 To begin simplifying this equation, you must add four to both sides. n/2 = 6 Finally, we must multiply both sides by two, in order to get rid of the denominator of the variable n. n = 12 We know that this answer is correct because if we plug the value 12 back into the beginning equation for the variable n, it results in a true statement. Thus, the number is 12. Hope this helps! :)
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Which of the following equations is in equation formed when completing the square on y^2 - 12 y= -27
bogdanovich [222]

Answer:

(y-6)^2=9

Step-by-step explanation:

Given

y^2 - 12y = -27

Required

Get equivalent expression using completing the square

<em>Follow these steps:</em>

  • <em>Take the coefficient of y; That is -12</em>
  • <em>Divide it by 2; That is (-12/2)</em>
  • <em>Square it: (-12/2)^2</em>

<em />

Add to both sides of the equation

y^2 - 12y + (\frac{-12}{2})^2= -27 + (\frac{-12}{2})^2

y^2 - 12y + (-6)^2= -27 + (-6)^2

y^2 - 12y + 36= -27 + 36

y^2 - 12y + 36= 9

Expand the right-hand side

y^2 - 6y - 6y + 36= 9

Factorize:

y(y-6)-6(y-6) =9

(y-6)(y-6)=9

(y-6)^2=9

5 0
2 years ago
Emily is making a punch that contains 75% apple juice and the rest ginger ale. The punch has 2 liters of ginger ale.
Flura [38]
For this item, we may let x be the number or liters of apple juice present in the ginger ale. The total volume of the punch then becomes
                                 total volume = 2 + x 
Then, considering that 75% of this is apple juice,
                                  x/(2 + x) = 0.75
                                   x = 0.75(2 + x) = 1.5 + 0.75x
                                          x = 1.5 + 0.75x
Also, for this item, the vaue of x is equal to 6 liters. 
7 0
3 years ago
Can you please help me and show you work ​
Nutka1998 [239]

Answer:

37.50 and 84.97

Step-by-step explanation:

5 0
2 years ago
I think of a number, then divide by 5, then subtract 78 -the result is nine
KATRIN_1 [288]

Answer:

Imagine that the number that we are looking for is x

We know that:

x/5 - 78 = 9

x/5         = 9 + 78

x/5         = 87

x             = 87 . 5 = 435

So the number we need is 435

8 0
3 years ago
Bill and Lisa are surveying their classmates about their summer reading. Their questions are given below:
Rina8888 [55]
It is my unprofessional opinion that the answer will be c.
my reasoning is because Lisa is asking for a percentage from a set amount<span />
7 0
3 years ago
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