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kondor19780726 [428]
3 years ago
6

Ten times the sum of half a number and 6 is 8

Mathematics
1 answer:
Genrish500 [490]3 years ago
5 0

" · " - times

" + " - sum

n - a number

0.5n - half a number

10 · (0.5n + 6) = 8     |use distributive property

(10)(0.5n) + (10)(6) = 8

5n + 60 = 8     |substract 60 from both sides

5n = -52    |divide both sides by 5

n = -10.4

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A three-bend saddle will only fit tight if the radius of the obstruction is equal to or less than the radius of the bend.
Dima020 [189]

Answer:

True

Step-by-step explanation:

A three-bend saddle consists of a center bend and 2 side bends with the center bend having twice the angle of the side bends. Therefore, the radius of the obstruction has to be equal or less than the radius of the bend in order to fit tightly

6 0
3 years ago
Find the solutions of the quadratic equation by finding the square root: x2 - 3 = 7.
Masja [62]

Answer:

<em>x = - √10, and x =√10</em>

Step-by-step explanation:

1. Let us add 3 to either side of the equation: x^2 - 3 + 3 = 7 + 3

2. That equation would simplify to: x^2 = 10

3. Now let us take the square root on either side: √x^2 = √10

4. Being square root of x^2, we could say that: | x | = √10

5. And thus 2 answer may be derived from this equation provided absolute value symbol ( | | ): <em>x = - √10, and x =√10</em>

3 0
3 years ago
I really dont understand what to do here if you can please help
NNADVOKAT [17]

Answer:

see below

Step-by-step explanation:

The two angles form a straight line so they add to 180 degrees

5x+60   + 3x-40 = 180

Combine like terms

8x +20 = 180

Subtract 20 from each side

8x+20-20=180-20

8x= 160

Divide by 8

8x/8=160/8

x=20

5x+60 = 5*20+60 = 160

3x-40 = 3*20-40 = 20

5 0
2 years ago
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lisabon 2012 [21]

Answer:

8.9x+1.66

Step-by-step explanation:

Combine like terms:

5.3x+3.6x+9.8-8.14

Simplify.

8.9x+1.66

8 0
2 years ago
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suter [353]

Answer:


Step-by-step explanation:

If we take the below diagram for the given triangles, then ∠B=∠E and ∠A=∠G if AB=GE or if BC=EF, then corresponding angles will be equal.

Therefore, if we rotate the diagram, then also the angles will remain the same.

7 0
3 years ago
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