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timofeeve [1]
3 years ago
11

If the sum of seven odd consecutive numbers is 231, find the middle number.

Mathematics
2 answers:
qaws [65]3 years ago
8 0
This is your answer, good luck buddy

andrew-mc [135]3 years ago
3 0

Answer:

33

Step-by-step explanation:

(1+x) + (3+x) + (5+x) + (7+x) + (9+x) + (11+x) + (13+x) = 231

7x + 49 = 231

7x = 231 - 49

7x = 182

x = 182/7

x = 26

To find the middle number;

7 + x

= 7+26

= 33

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Math help due soon thanks
belka [17]

Answers:

  1. Skipping
  2. Skipping
  3. Angles A and E
  4. Angles B and C
  5. Angles D and E
  6. Angles A and H
  7. Angles A and B
  8. Angle A
  9. Angle B
  10. Angles E and F

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

Explanation:

  1. Skipping
  2. Skipping
  3. Corresponding angles are ones where they are in the same configuration of the 4 corner angle set up. Angles A and E are in the same northwest position. Another pair would be angles B and F in the northeast, and so on. Corresponding angles are congruent when we have parallel lines like this.
  4. Vertical angles form when we cross two lines. They are opposite one another and always congruent (regardless if the lines are parallel or not).
  5. Alternate interior angles are inside the parallel lines, and they are on alternating sides of the transversal cut. Alternate interior angles are congruent when we have parallel lines like this.
  6. Alternate exterior angles are the same idea as number 5, but now we're outside the parallel lines. Alternate exterior angles are congruent when we have parallel lines like this.
  7. Adjacent angles can be thought of as two rooms that share the same wall. Specifically, adjacent angles are two angles that share the same segment, line, or ray. The angles must also share the same vertex. In this case, any pair of adjacent angles always adds to 180 (though it won't be true for any random pair of adjacent angles for geometry problems later on).
  8. Simply list any angle that looks obtuse, ie any angle that is larger than 90 degrees.
  9. List any angle that is smaller than 90 degrees. It can be adjacent to whatever you picked for problem 8, but it could be any other acute angle as well.
  10. Refer to problem 7. In this case, adding any two adjacent angles together forms a straight line.
7 0
3 years ago
Find the product -a^4(7a^5- 5a+ 5)
Nostrana [21]
-a^4(7a^5- 5a+ 5) = - 7a^{9} +5 a^{5} -5 a^{4}
3 0
3 years ago
A skateboarding club randomly surveyed 200 people who visited the club's website about their favorite skateboard brand. The data
denis-greek [22]

Answer: 36/200 = 18/100 = 18%

Step-by-step explanation:

5 0
3 years ago
You tape two pieces of paper together that each measure
sertanlavr [38]

Answer:

The paper is 60.73 cm long.

Step-by-step explanation:

The two pieces of paper each measure 41.36 cm, so those together would be 82.72 cm. Subtracting the 21.99 that is cut off, you're left with 60.73 cm. Hope this helped!

8 0
3 years ago
Read 2 more answers
Hi! can someone please help? i added a pic so that u can see what i need help on. hopefully it helps
almond37 [142]

Answer:

I'm pretty sure that the answers would go, Wrong, increased, 9 1/2 points, 6 5/8 points, dropped, 12 3/4 points.

Step-by-step explanation:

The reason why it would be wrong is because the amount of points lost was less than the total amount of points gained.

In week one and two the company gained 9 1/2 points and 6 5/8 points. When you add them together, you get 16 1/8 points.

In week three the company lost 12 3/4 points. If you multiply the fraction to change the denominator to 8, the mixed fraction becomes 12 6/8.

16 1/8 - 12 6/8 = 3 3/8

As you can see, there are still points left over.

In the fourth week, they ended up losing all of their points and then some more, but from my understanding it's just asking about the third week.

Hope that this helps!

4 0
2 years ago
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