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VMariaS [17]
2 years ago
8

Use the associative property write an equivalent expression. (5 + 7) + x =

Mathematics
1 answer:
Firdavs [7]2 years ago
6 0
<h3>Answer:</h3>

5+(7+x)

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

Finding an Equivalent Expression

The associative property of addition states that you can move the terms that are inside the parentheses and still have the expression remain true. So, in the answer above, I moved 5 out of the parentheses and x into the parentheses. No matter the value of x the value of the expression will remain the same

Examples and Proof

Another example of the associative property could be (1+6)+3 = 1+(6+3). To prove this statement we can evaluate each side of the expression.

First, let's do (1+6)+3

  • (1+6)+3
  • (7)+3
  • 10

Next, let's do 1+(6+3)

  • 1+(6+3)
  • 1+(9)
  • 10

As you can see both of these expressions are the same, thus proving that the associative property works in this situation.

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What number is halfway between -15 and 20
ollegr [7]

Answer : 2.5

Solution:

To find the halfway number it means that you need to find the middle most value using the formula

Mid value = (X + Y) / 2

So in this case it would be,

Mid value =  (-15 + 20 ) / 2

Mid Value = ( 5 ) / 2

Mid Value = 2.5 answer

Hope this helps in understanding the question! :)

Note : do not forget the negative sign as it will change the answer and may cost you marks!

4 0
3 years ago
Find the volume of the pyramid with a square base, where the area of the base is 16.3ft and the height of the pyramid is 13.7ft
Deffense [45]

Answer:

oooooogg

Step-by-step explanation:

4 0
3 years ago
151. Find the perimeter of this triangle
Lena [83]

The perimeter is the sum of all the sides of the figure⇒

<em><u>151</u></em>

P=a+b+c+d...

P=(y+9)+(3y+3)+(4y+6)=y+9+3y+3+4y+6=8y+18

<u><em>152</em></u>

<u><em></em></u>P=a+b+c+d...\\P=(4a-100)+(2a-15)+(2a+40)=4a-100+2a-15+2a+40=\\=8a-75<u><em></em></u>

<u><em></em></u>

<u><em>153</em></u>

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6 0
3 years ago
Find the distance from the point (6,10) to the line y=-x to the nearest tenth
ValentinkaMS [17]
<span>points (6,10)
</span>y = -x
x + y = 0

distance = lax1 + by1 + cl/√(a^2 + b^2)
 = l1(6) + 1(10) + 0l/√(1^2 + 1^2)
 = l6 + 10 + 0l/√(1 + 1)
 = l16l/√2
 = 16/√2
 = 8 .2/√2
 = 8 . √2.√2/√2
= 8√2
4 0
3 years ago
PLEASE ANSWER Angela is a member of the swim team 7 member of the swim team are boys the other 8 members of the swims teams are
Marianna [84]
1/15 Bc there's 15 on the team and only 1 is getting the medal
8 0
3 years ago
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