1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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

You might be interested in
X/2 is greater than or equal to -4
irga5000 [103]
\frac{x}{2}≥-4

Pretend the greater than or equal to sign is an equal sign, we will substitute it back in later.

x/2 = -4
Multiply both sides by 2 to get x alone
x = -8
Substitute the greater than or equal to sign back in and voila!
x≥-8
3 0
3 years ago
Need help with image below
Ann [662]

Step-by-step explanation:

please provide formula

7 0
3 years ago
When f(x) = 2x 2 + 3, find f(-3).<br> -15<br> 21<br> 39
notsponge [240]

Answer:

21

Step-by-step explanation:

f(x) = 2x^2 + 3

f(-3) = 2(-3)^2 + 3

f(-3) = 2(9) + 3

f(-3) = 18 + 3

f(-3) = 21

6 0
3 years ago
Solve 2(b − 3) ≥ 3(3 − b) and describe the graph of the solution. Show all your work.
solong [7]

Answer:

\large\boxed{b\geq3\to b\in[3,\ \infty)}

Step-by-step explanation:

2(b-3)\geq3(3-b)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\(2)(b)+(2)(-3)\geq(3)(3)+(3)(-b)\\\\2b-6\geq9-3b\qquad\text{add 6 to both sides}\\\\2b-6+6\geq9+6-3b\\\\2b\geq15-3b\qquad\text{add}\ 3b\ \text{to both sides}\\\\2b+3b\geq15-3b+3b\\\\5b\geq15\qquad\text{divide both sides by 5}\\\\\dfrac{5b}{5}\geq\dfrac{15}{5}\\\\b\geq3

,\ \geq-\text{line to the right}\\-\text{o}\text{pen circle}\\\leq,\ \geq-\text{closed circle}

4 0
3 years ago
Which expression makes the equation true?
valina [46]
Equation is y^20 = (   )^2

Answer: 

y to the power of 10. 
4 0
3 years ago
Other questions:
  • A student takes a 15 question
    9·1 answer
  • What is the surface area of the cube below?
    13·1 answer
  • How do you graph x-2y=4 And 2x+y=-7 system of equations
    8·1 answer
  • Which conversion on the metric table need division
    10·1 answer
  • Mae ling earns a weekly salary of $320 plus a 8.0% commission on sales at a gift shop. How much would she make in a work week if
    14·1 answer
  • When a number is decreased by 20% of itself, the result is 128. what is the number?
    15·1 answer
  • a spinner with 9 equally sized slices is shown . The dial is spun and stop on a slice at random. What are the odds in favor of l
    9·2 answers
  • Which system of equations corresponds to this matrix multiplication operation
    15·2 answers
  • At CFIS Intermediate school, 40% of the 500 students ride their bikes or walk to school. How many students ride their bikes or w
    15·1 answer
  • ANSWER PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!