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
Aneli [31]
3 years ago
13

3y + 8 = ½ y + 28 Find y

Mathematics
1 answer:
Bess [88]3 years ago
8 0

\text{Hi there! :]}

\large\boxed{y = 8}

3y + 8 = 1/2y + 28\\\\\text{Subtract 8 from both sides:}\\\\3y + 8 - 8 = 1/2y + 28 - 8\\\\3y = 1/2y + 20\\\\\text{Subtract 1/2y from both sides:}\\\\3y - 1/2y = 1/2y - 1/2y+ 20\\ \\\text{Convert 3y to 6/2y to make subtracting easier:}\\5/2y = 20\\\\\text{Divide both sides by 5/2 (Multiply by reciprocal, or 2/5):}\\\\\\5/2y * 2/5 = 20 * 2/ 5\\\\y = 8

You might be interested in
One way to solve the system is to _____________ a variable.
Ivahew [28]

One way to solve the system is to <u>substitute</u> a variable.

<u>Explanation:</u>

One approach to solve an equation is by substitution of one variable. Right now, a condition for one factor, at that point substitute that arrangement in the other condition, and explain. All value(s) of the variable(s) that fulfills a condition, disparity, arrangement of conditions, or arrangement of imbalances.

The technique for tackling "by substitution" works by settling one of the conditions (you pick which one) for one of the factors (you pick which one), and afterward stopping this go into the other condition, "subbing" for the picked variable and fathoming for the other. At that point you back-explain for the principal variable.

8 0
3 years ago
Read 2 more answers
K(x)=6x-12; k(x)=18<br> please help idk what the answer is
ExtremeBDS [4]
Ok so you would plug in 18 for the x so it would be 6(18)-12 and then 6x18 is 108 and 108-12=96 so your answer is 96
8 0
3 years ago
Read 2 more answers
HELPP!!<br> Select the correct answer.<br> What is the value of arcsin ?
Schach [20]

For this case we have that by definition, it is called arcsine (arcsin) from a number to the angle that has that number as its sine.

We must find the arcsin (\frac {\sqrt {2}} {2}). Then, we look for the angle whose sine is \frac {\sqrt {2}} {2}.

We have to, by definition:

Sin (45) = \frac {\sqrt {2}} {2}

So, we have to:

arcsin (\frac {\sqrt {2}} {2}) = 45

Answer:

Option B

5 0
3 years ago
Read 2 more answers
The ratio of blue marbles to red marbles in a box is 3 to 2. if there are 12 blue marbles in a box then how many red marbles are
valkas [14]
The answer is: 8 red marbles!

This is because the equation can be written out like this
Blue to red - 3:2
Now it is, blue to red - 12:x

We have to think, what is the difference from the first equation to the second. We know the number 3 times 4 = 12, so we would do the same for the red, 2 times 4=8

If this helped, give me brainliest :)
6 0
3 years ago
Read 2 more answers
What is the expression written using each base only once?
Murrr4er [49]
1. (-4)^-6 * (-4)^7 = (-4)^(-6+7) = (-4)^1 =
  B. -4

2. (3*10^6)*(8*10^-4) = (3*8)*10^(6-4) = 24*10^2 =
  B. 2.4*10^3
5 0
3 years ago
Other questions:
  • Find two positive numbers whose difference is 8 and whose product is 713
    15·1 answer
  • Upper bound perimeter of rectangle 15.8 m x5.2 m
    12·2 answers
  • Solve the system 8x + 2y = -3, 3x - 2y = 8
    8·1 answer
  • Help me please for brainliest!
    13·2 answers
  • Identifying a pattern cannot help you make an estimate.<br><br> True or False
    8·1 answer
  • What is the value of x in the equation 3(2x + 8) = 0? (4 points)
    10·1 answer
  • Keenan is training for a triathlon and needs to swim a certain distance for today's workout. If he swims at the rec center pool,
    13·1 answer
  • Mary picked 47 apples from the orchard, and gave 22 apples to Dan. How many apples does Mary have now
    10·2 answers
  • Taylor is working two summer jobs, making $7 per hour washing cars and making $11 per hour landscaping. In a given week, she can
    7·1 answer
  • Convert 12 quarts to gallons.<br><br> 24 gallons<br> 3 gallons<br> 2 gallons<br> 4 gallons
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!