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goblinko [34]
2 years ago
15

Help please A. 12 B. 6 C. 2 D. 15

Mathematics
2 answers:
Gre4nikov [31]2 years ago
8 0

Answer:

The answer to this equation would be <u>B. 6!</u>

Step-by-step explanation:

  1. 2x + 3 = 15
  2. Subtract 3 from left and right side. Variable needs to  be left alone. 15 will turn into 12. <em>  </em>
  3. <em>2x = 12 </em>
  4. <em>x= 6 since 2 x 6 = 12 or divide 12 by 2 and get  6</em>

<em>Check Answer:</em>

<em>2(6) + 3 = 15</em>

<em>2x6 =12</em>

<em />

<em>12 + 3 =15 </em>

Oliga [24]2 years ago
6 0

Answer:

6

Step-by-step explanation:

2x + 3 = 15

     - 3    -3

__________

2x = 12

_______

2        2

That cancels out 2x so x = 6

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Everglades National Park is 225 mi long. What scale is needed to draw a map of Everglades National Park that is 10 in. long?
shusha [124]

Answer:

A. 1 in. = 22.5 mi

Step-by-step explanation:

Since 22.5 x 10 = 225, we can conclude that this will fit the scale needed. B. is incorrect because it is simply illogical in context with a scale and the question. C. is incorrect since 10 x 0.04 is 0.4, which does not equal 10. D. is incorrect since we need the scale to add up to equal 225 mi, not 22.5.

Hope this helps!

7 0
3 years ago
Help! I need to know if 7√3+2√9 is rational or irrational
Brums [2.3K]

Answer:

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Step-by-step explanation:

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Therefore, this is irrational. Hope this helps!

3 0
4 years ago
PLEASE HELP. WILL MARK BRAINLIEST.
Alina [70]

Answer:

y = x² + 6x + 8

Step-by-step explanation:

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the factors are (x + 4) and (x + 2) and the function is the product of the factors.

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a = 1, thus

y = (x + 4)(x + 2) ← expand using FOIL

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6 0
3 years ago
The temperature fell from 0°F to 6 3/5°F below 0°F in 2 1/5 hours. What was the temperature change per hour.
kakasveta [241]

Answer With Step-by-step explanation:

C: 3

This is because 6 3/5 is a positive number, and 6 3/5 ÷ 2 1/5 = 3

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