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denis23 [38]
4 years ago
11

How many digits are in a phone number including the area code

Mathematics
2 answers:
pav-90 [236]4 years ago
7 0

Answer:

11 digits

Step-by-step explanation:

x-xxx-xxx-xxxx

Counting these x's they would be 11. (if living in U.S.A)

lianna [129]4 years ago
7 0

The area code has 3 numbers. The first section has 3. Last section has 4. 6+4=10

There are 10 digits in a phone number.

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One angle of a right-angled triangle is 60 grades . Find the other angle in degree.​
eduard

Answer:

<u>30°</u>

Step-by-step explanation:

This right triangle has :

  1. right angle (90°)
  2. One angle of 60°

=========================================================

Solving :

We know the angle sum of a triangle is 180°.

⇒ x + 90° + 60° = 180°

⇒ x + 150° = 180°

⇒ x = <u>30°</u>

3 0
3 years ago
Read 2 more answers
-5x + y = -2, -3x + 6y= -12. Solve each system by substitution
Ahat [919]

Answer: x = 0, and y = -2

Step-by-step explanation:

-5x + y = -2 .........(1)

-3x + 6y = -12 ......(2)

From equation (1)

-5x +y = -2 .........(1)

y = 5x - 2 .............(3)

Now substitute for y  in equation (2)

-3x + 6 (5x -2 ) = -12

Make use of 6 to open the bracket ,we now have

-3x + 30x - 12 = -12

= 27x - 12 = -12

Collect the like terms

27x = -12 + 12

27x = 0

Divide through by 27 to get the value of x

x = 0/27

x = 0

To determine y, substitute for x in equation (3)

y = 5x - 2

y = 5(0) - 2

y = 0 - 2

y = -2

Check : Substitute for x and y in equation (1)

-5x + y = -2

-5(0) + (-2) = -2

0 -2 = -2

0 - 2 = -2

5 0
4 years ago
What is the quotient of the division below?<br> 9) 2599<br> 288.7<br> 288.7<br> 288.8<br> 288.8
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Answer:

7

Step-by-step explanation:

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3 years ago
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Rainbow [258]

Answer:

Step-by-step explanation:

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B∩C ------> We have to write only the elements that are found in both B set and C set

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b) A ∪ C = {1, 3, 5, 6, 7, 9, 10,2,4,8,12}

c) B ∩ C = {10,12}

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EAnswer:E

Step-by-step explanation:

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