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leva [86]
3 years ago
14

What algebraic property is demonstrated in the equation below? 5(8x-4) - 10 = 40x - 20 -10

Mathematics
1 answer:
sammy [17]3 years ago
5 0

Answer:

Distributive Property is demonstrated in equation below.

5(8x-4) - 10 = 40x - 20 -10

Step-by-step explanation:

Distributive Property:

The distributive property lets us multiply a sum by multiplying each addend separately and then add the products.

Normally,students does not understand by these word definition we will see some examples based on that.

A(B\pm C)=A\times B \pm A\times C

Here A is multiplied by B and then addition sign or Subtraction sign and then A is multiplied by C is done by distributive property that means we are distributing A to B and C.

Here given,

5(8x-4) - 10 = 40x - 20 -10

by applying distributive property we get

5(8x-4) - 10 = 5\times8x-5\times 4 -10\\=40x -20-10\\5(8x-4) - 10 =40x-30

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I only need the equations, I can solve it.
natali 33 [55]
How can you solve it if you don't know the equations?  :P  Just kidding...

n+d=22, so we can say that d=22-n

5n+10d=120, and using d found above in this equation gives you:

5n+10(22-n)=120

5n+220-10n=120

-5n=-100

n=20, and since  d=22-n, d=2

So there are two dimes and twenty nickels...

check...

20(5)+2(10)=100+20=120 cents which is $1.20

n+d=22, 20+2=22, 22=22
4 0
3 years ago
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Hello I need help on this math question​
Zigmanuir [339]

Answer:

50.24\ cm ^2

Step-by-step explanation:

Let's start by finding the radius of this circle.

D=2r\\8=2r\\\text{Divide both sides by 2}\\r=4

Note that in the equation:

A=\pi r^2

"A" stands for area and "r" stands for radius.

Now, let's substitute the given values into the equation.

A=\pi r^2\\A=3.14*(4)^2\\A=3.14*16\\A=50.24\ cm^2

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2 years ago
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The answer to this question is 29.542 hectares
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2 years ago
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Dovator [93]

Answer:

70x + 100

Step-by-step explanation:

Trust me on this one

6 0
2 years ago
<img src="https://tex.z-dn.net/?f=x%20%5Cdiv%202%20%2B%20x%20%5Cdiv%203%20%3D%201%20" id="TexFormula1" title="x \div 2 + x \div
blsea [12.9K]

Answer:

Exact form : x=6/5

Decimal form : x=1.2

Mixed Number form : x=1 1/5

Step-by-step explanation: Solve for x by simplifying both sides of he equation, then isolating the variable.

Hope this helps you out! ☺

4 0
3 years ago
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