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kompoz [17]
2 years ago
10

4c-2d÷c elvauate for c= 2 and d=5. Enter your numerical number

Mathematics
2 answers:
jok3333 [9.3K]2 years ago
4 0
You just need to substitute 4(2)-2(5)/2
8-10/2
8-5
=3
aivan3 [116]2 years ago
4 0
Answer: 3

Step-by-Step Explanation:

=> 4c - 2d/c; c = 2 and d = 5

Substitute values of ‘c’ and ‘d’ :-

= 4c - 2d/c
= 4(2) - 2(5)/(2)
= 8 - 10/2
= 8 - 5
=> 3
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4 0
3 years ago
Read 2 more answers
!SUBSTITUTION METHOD!<br><br>6y - 5z = -8 <br>3z = -6 <br>4x - 3y - 2z= 21​
hichkok12 [17]

Answer:

<h2>x = 2 </h2><h2>y = - 3</h2><h2>z = - 2</h2>

Step-by-step explanation:

6y - 5z = -8 .......... Equation 1

3z = -6 ................... Equation 2

4x - 3y - 2z= 21...... Equation 3

<u>First solve for z in Equation 2</u>

That's

3z = - 6

Divide both sides by 3

<h3>z = - 2</h3>

Next substitute the value of z into Equation 1 in order to find y

We have

6y - 5(-2) = - 8

6y + 10 = - 8

6y = - 8 - 10

6y = - 18

Divide both sides by 6

<h3>y = - 3</h3>

Finally substitute the values of y and z into Equation 3 to find the value of x

That's

4x - 3(-3) - 2(-2) = 21

4x + 9 + 4 = 21

4x + 13 = 21

4x = 21 - 13

4x = 8

Divide both sides by 4

<h3>x = 2</h3>

So the solutions are

<h3>x = 2 </h3><h3>y = - 3</h3><h3>z = - 2</h3>

Hope this helps you

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3 years ago
What minus 31 equals to 213
faltersainse [42]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

C. y = -x + 2

Step-by-step explanation:

First, find the slope, m, of the line that passes through the two given points.

Slope = \frac{rise}{run} = \frac{-2}{2} = -\frac{1}{1} = -1

Next, determine the y-intercept, b.

The y-intercept is where the line intercepts the y-axis. The line intercepts the y-axis at y = 2. Therefore, b = 2.

Now, to get an equation of the line, substitute m = -1, and b = 2 in y = mx + b.

✅The equation would be:

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