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I am Lyosha [343]
3 years ago
10

A first number plus twice a second number is 9. Twice the first number plus the second totals 27. Find the numbers

Mathematics
1 answer:
SOVA2 [1]3 years ago
6 0
Create a a system of 2 equations: 2x + y = 27 and 2y + x = 9, with x being the first number and y being the second. solve for the two variables and you'll get the first number is 15 and the second is -3.
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How many solutions does this equation have?
Leto [7]

Answer:

The given equation having only one solution i.e., "w = 3". A further explanation is provided below.

Step-by-step explanation:

The given equation is:

⇒ 9(w-9)-2=-7w+7(w-8)

By opening the brackets, we get

⇒ 9w-81-2=-7w+7w-56

⇒ 9w-83=-56

On adding "83" both sides, we get

⇒ 9w-83+83=-56+83

⇒                 9w=27

⇒                   w=\frac{27}{9}

⇒                       =3

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2 years ago
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Hong compared the player statistics from his teams tennis season. He determined that being taller implies that a player has fast
polet [3.4K]

There is a correlation between height and speed of the serve

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Read more about correlation at:

brainly.com/question/4219149

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4 0
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Help me to do this please
Tanzania [10]

If x represents the mass of 1 ball in kg, then the balance shows ...

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Then 6x is ...

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