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kow [346]
3 years ago
15

Does anyone know why x is normally used for an unknown number?

Mathematics
1 answer:
jeka943 years ago
7 0

Then you are able to substitute in X and it can have a infinite number of values catered to the question.

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8 + 4a + 6.2 - 9a = ​
Strike441 [17]

Answer: 14.2 - 5a

Work: I just did "CLT" of "Combine Like Terms". I did 8 + 6.2 First because 8 is first, then I did 4a - 9a which is -5a, and I combined them, and got the answer. I hope this helps, and stay safe! :)

7 0
3 years ago
The SOLT missionaries are throwing a birthday party. There is obviously cake. Mr. Daniel only wants 1/2 of a piece. Mr. Richie e
marishachu [46]

Answer:

1/ 112

Step-by-step explanation:

1-½ = ½ ( Mr. Daniel's leftover)

½×½= ¼ ( Mr. Richie)

½×¼= 1/8 ( Ms Laura)

½×1/8 = 1/16 ( Ms. Kimberly)

1/7 × 1/16 = 1/ 112 (the last turn)

so, Ms. Sarah eats 1/ 112 of a piece.

3 0
3 years ago
Can someone help me on this?
vlada-n [284]

Answer:

the triangle PQR is similar to RTS

Step-by-step explanation:

QR : RT

2 : 6

this 1:3 ratio is also seen in PR (4) with RS (12)

8 0
3 years ago
Ernesto saves $5.25 every week about how many weeks will take Ernesto to save $315
nikdorinn [45]

Answer:

It will take 60 weeks for Ernesto to save $315

4 0
3 years ago
Read 2 more answers
13 + 2v - 8 + 6 > -7 - v please simplify and explain IN ONLY NUMBERS NO WORDS
insens350 [35]

Answer:

v > - 6

Step-by-step explanation:

13 + 2v - 8 + 6 > -7 - v (calculate the sum of difference)

= 11 + 2v>-7-v (move variable to the left-hand side and change its sign and move constant to the right-hand side and change its sign)

= 2v + v > - 7 - 11 (collect like items and calculate the difference)

= 3v>-18 (divide both sides of the inequality by 3)

=v > - 6

*in parentheses is written what to do to get the next number*

6 0
3 years ago
Read 2 more answers
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