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8_murik_8 [283]
3 years ago
10

What is Twice​ x, plus 8 ​, is the same as -15?

Mathematics
2 answers:
Lemur [1.5K]3 years ago
8 0

Answer:

x=11.5

Step-by-step explanation:

2x+8=-15

x=-23/2

x=-11.5

Rainbow [258]3 years ago
6 0

Answer:

= -11.5

Step-by-step explanation:

2x + 8 = - 15

2x = -15-8

2x = - 23

divide both sideby 2

<u>2</u><u>x</u> = -<u>2</u><u>3</u>

<u>2</u> 2

x = -11.5

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Write an equation in point-slope form of the line that passes through the given point and has the given slope. (3,5);m=-1
KIM [24]

\bf (\stackrel{x_1}{3}~,~\stackrel{y_1}{5})~\hspace{10em} slope = m\implies -1 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-5=-1(x-3) \\\\\\ y-5=-x+3\implies y=-x+8

3 0
4 years ago
A certain high school class consists of juniors and seniors. There are
Genrish500 [490]

Answer:

10 SENIORS

Step-by-step explanation:

x=# of seniors

y=# of juniors

x+y=23, x=2y-7

  1. plug the value of x in the second equation into the first
  2. (2y-7)+y=23
  3. Remove parentheses
  4. 2y-7+y=23
  5. Combine like terms
  6. 3y-7=23
  7. Add 7 to BOTH sides
  8. 3y=30
  9. divide BOTH sides by 3
  10. 3y/3=30/3
  11. y=10
  12. There are 10 juniors in the class
  1. FINAL STEPS
  2. Plug y (which is 10) into the first equation
  3. x+y=23
  4. x+10=23
  5. subtract 10 from BOTH sides
  6. x=13
  7. Since X equals the number of seniors, there are 10 seniors in the class

8 0
3 years ago
Is y=-3/4×+2 and 3x-4y=-8 parallel,perpendicular,or neither.&lt;br /&gt;​
cricket20 [7]

Answer:

The answer can be find out by doing the following steps;

Step-by-step explanation:

8 0
3 years ago
How do I find miles per hour when I get minutes and miles
Scilla [17]
In this case you have:

\frac{miles}{minute}

An hour has sixty minutes.

\frac{60 minutes}{1 hour}

<span>You must multiply by this equality.

</span>(\frac{miles}{minute})(\frac{60 minutes}{1 hour})=\frac{(miles)(60 minutes)}{ (minute)(hour)}=\frac{(miles)(60)}{(hour)}


<span>You must multiply by 60 and you can convert miles per minute to miles per hour.</span>





6 0
3 years ago
How do you solve for B in 65pi=B5?
Bingel [31]
So assuming pi represents 1 term or the ratio of the diameter to the circumfernce and B5 means B times 5 and not B^5

65pi=B5
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(65pi)/5=B
simplify
13pi=B
6 0
3 years ago
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