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Nady [450]
3 years ago
12

Please help me!! solve 31 = x + 25.5

Mathematics
2 answers:
serious [3.7K]3 years ago
6 0

Answer:

x = 5.5

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

31 = x + 25.5

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 25.5 on both sides:                    5.5 = x
  2. Rewrite:                                                      x = 5.5
notsponge [240]3 years ago
5 0

Answer:

X = 11/2

Step-by-step explanation:

hope this helps and have a safe and joyful holiday

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Multiply both sides of the equation by 6.<br> {(4a + 1) = 2a<br> ? (4a + 1) = ?<br> a
solniwko [45]

Answer:

24a+6=12a

Step-by-step explanation:

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3 years ago
Eight people attend the theater "together and sit in a row with exactly eight seats. Suppose the eight people consist of three m
Nata [24]

Answer:

They can be seated in 120 differents ways.

Step-by-step explanation:

Taking into account that there are 3 couples and every couple has an specific way to sit, for simplify the exercise, every couple is going to act like 1 option and it's going to occupy 1 Place. If this happens we just need to organize 5 options (3 couples and 2 singles) in 5 Places (3 for a couple and 2 for the singles)

It means that now there are just 5 Places in the row and 5 options to organized. So the number of ways can be calculated using a rule of multiplication as:

<u>      5         </u>*<u>        4          </u>* <u>       3           </u> *  <u>        2     </u>  * <u>         1         </u> = 120

 1st place    2nd Place    3rd place        4th Place    5th Place

Because we have 5 options for the 1st Place, the three couples and the 2 singles. Then, 4 options for the second Place, 3 options for the third place, 2 for the fourth place and 1 option for the 5th place.

Finally, they can be seated in 120 differents ways.

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3 years ago
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Answer:

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2 years ago
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amid [387]
The answer is 19.8 to ur problem

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3 years ago
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