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Dovator [93]
3 years ago
12

For the equation 2(4x+10)=8x+k what value of k will create infineltly many solutions please help

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
3 0

Answer:

The value of k = 20 for equation 2(4x+10)=8x+k to have infinitely many solutions.

Step-by-step explanation:

Given the expression

2(4x+10)=8x+k

solving

2(4x+10)=8x+k

8x+20 = 8x+k

We know that the equations with infinitely many solutions have the same expressions on both sides

It means the value of k can be determined by further simplifying such as

8x+20 = 8x+k

8x+20-8x = k

20 = k

Therefore, the value of k = 20 for equation 2(4x+10)=8x+k to have infinitely many solutions.

VERIFICATION:

Given

2(4x+10)=8x+k

8x+20 = 8x+k

Put k = 20 in the equation

8x+20 = 8x+20

8x+20 - 8x+20 = 0

0 = 0

equations with infinitely many solutions have the same expressions on both sides.

This means the statement is always true.

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Answer:

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Step-by-step explanation:

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We are given 2 points: (4, 3.5) and (10, 8.72)

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y = 0.87x + b

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2 years ago
What is nine times what equals 513
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Answer:

57

Step-by-step explanation:

How I did this was 513 divided by 9 so the equation that I did was 513/9.

4 0
3 years ago
Read 2 more answers
The sum of three numbers is 102. The first number is 6 more than the second. The third number is 4 times the second. What are th
const2013 [10]

Answer:

1st number: 22

2nd number: 16

3rd number: 64

Step-by-step explanation:

x + y + z = 102

x = 6 + y

z = 4y

plug that in!

(6 + y) + y + (4y) = 102

get rid of the parenthesis (I added them so you could see what I was replacing) and add like terms.

6 + 6y = 102

move 6 to the other side.

6y = 96

y = 16

now that you know one number, you can solve the equations for the rest!

x = 6 + (16)

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__________________________________________________________

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6 0
2 years ago
What is the volume of this rectangular
Basile [38]
<h3>Given:</h3>
  • l= 5 m
  • b= 4 m
  • h= 3 m
<h3>Note that:</h3>
  • l= length
  • b= breadth
  • h= height
<h3>To find:</h3>

The volume of the given rectangular pyramid.

<h3>Solution:</h3>

\large\boxed{Formula:V=\frac{1}{3}lbh}

First, multiply the length (5), breadth (4) and height (3).

5×4×3

= 60 \: cm

Now, divide 60 by 3.

\frac{60}{3}

\large\boxed{V= 20 \: {m}^{3}}

<u>Therefore, the volume of the given rectangular pyramid is 20 cubic meters.</u>

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