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Nonamiya [84]
2 years ago
15

What is the value of x? pls help!! :(

Mathematics
2 answers:
Mademuasel [1]2 years ago
8 0

Answer:

x =31

Step-by-step explanation:

If you see that's a straight line, and the straight line is always 180 degrees, there fore if you use this 56+4x=180 the x will be 31.

sineoko [7]2 years ago
3 0

Answer:

x = 31

Step-by-step explanation:

angles formed on a straight line have a sum of 180°

Thus, 4x + 56 = 180

4x + 56 = 180

* subtract 56 from each side *

56 - 56 cancels out

180 - 56 = 124

4x = 124

* divide both sides by 4 *

4x / 4 = x

124 / 4 = 31

we're left with x = 31

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nadezda [96]

Answer: x = −12

Step-by-step explanation:

−27 = x −15

x − 15 = −27

x − 15 + 15 = −27 + 15

x = −12

5 0
3 years ago
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A committee must be formed with 4 teachers and 5 students. If there are 11 teachers
Ivenika [448]

Answer:

11C4 × 11C5

\binom{11}{4}   \times  \binom{11}{5}  =  \frac{11 \times 10 \times 9 \times 8}{4 \times 3 \times 2 \times 1}   \times  \frac{11 \times 10 \times 9 \times 8 \times 7}{5 \times 4 \times 3 \times 2 \times 1}  = 330 \times 462 = 152460

7 0
1 year ago
A transformer increases the input voltage from 12V to 12,000V. What is the ratio of the number of wire turns on the primary coil
erma4kov [3.2K]

Answer:

\frac{n_p}{n_s}=\frac{1}{1000}

Step-by-step explanation:

Given voltage of primary coil is V_p=12V

And voltage of secondary coil is V_s=12,000V

A transformer is a device that contains primary and secondary coil. These coils are mounted on soft iron. The change in voltage depends upon the number of turns of primary coil (n_p) and secondary coil (n_s).

Following equation represents the relation between them.

\frac{V_s}{V_p} =\frac{n_s}{n_p}\\\\\frac{12,000}{12}=\frac{n_s}{n_p}\\\\1000=\frac{n_s}{n_p}

Then, ratio of the number of wire turns on the primary coil to the number of turns on the secondary coil is

\frac{n_p}{n_s}=\frac{1}{1000}

5 0
3 years ago
The rock hard company is going to transport truckloads of stones to a highway project. It will cost $4200 to rent trucks, and it
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Answer:

c =4200+275s

Step-by-step explanation:

C is the total cost

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275 is the price for each ton

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4 0
3 years ago
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mr Goodwill [35]

Answer:

600

Step-by-step explanation:

7 0
3 years ago
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