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Rzqust [24]
3 years ago
12

What property is 7+(4+6)=7+n

Mathematics
1 answer:
Ket [755]3 years ago
7 0

This looks like "half" a property. I'm assuming you mean something that looks like this:


IF a + b = a + c, THEN b = c. In the expression in your problem, the role of a is being played by 7. The role of b is played by (4 + 6), and the role of c is played by n.


The conclusion would be that 4 + 6 = n.


But you asked about what the property is called. The likely name is the subtraction property of equality. How did we go from a + b = a + c to the conclusion b = c? We subtracted a from both sides of the equation.

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ZanzabumX [31]

Answer:

Formula: a² + 2ab + b² = (a + b)²

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3 0
3 years ago
last summer, at camp okey-fun-okey, the ratio of the number of boy campers to girl campers was 8:7. If there were a total of 195
Evgen [1.6K]

The ration of boy campers to total campers is 8:15, and the ratio of girl campers to total campers is 7:15.  Using this information, we can answer this question by setting up proportions.

<u>For boys:</u>

\frac{8}{15} =\frac{x}{195}

<em>*Cross multiply*</em>

15x=1560

<em>*Divide both sides by 15*</em>

x=104

There are 169 boy campers.


<u>For girls:</u>

\frac{7}{15} =\frac{x}{195}

<em>*Cross multiply*</em>

15x=1365

91=x

There are 91 girl campers.


Hope this helps!!

7 0
3 years ago
Read 2 more answers
Why is it useful to factor polynomial expressions for a given scenario?
White raven [17]

To determine the roots or the zeros of the polynomial. These are the x-intercepts.

3 0
3 years ago
En una bolsa se colocan 8 bolas rojas, 3 blancas y cuatro negras. Se elige una bola al azar y luego sin
astraxan [27]

Answer:

4

Step-by-step explanation:

6 0
2 years ago
Ir 9-6x=45, find the value of x-4
larisa86 [58]
9 - 6x = 45 
-9               -9
_____________
-6x = 54 
 
  x = -9 

________________________
So when you plug that answer into x-4 you get -9 -4, which equals -13. 
7 0
3 years ago
Read 2 more answers
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