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
photoshop1234 [79]
3 years ago
5

Nine fewer than half a number is five more than four times the number. Define a variable, write an equation, solve the number.

Mathematics
1 answer:
zmey [24]3 years ago
5 0
N = the number

\frac{1}{2}n - 9=4n+5 \\ ( \frac{1}{2}n  -  \frac{1}{2}n)-9=(4n- \frac{1}{2}n)+5 \\ -9=3.5n+5 \\ (-9-5)=3.5n+(5-5) \\ -14=3.5n \\  \frac{-14}{3.5} =  \frac{3.5n}{3.5} \\ -4=n

The number is -4
You might be interested in
PLZ HELP I WILL MARK BRAINLIEST
s344n2d4d5 [400]

Answer:

the purpose of this as is to get everyone excited about the roller coaster

Step-by-step explanation:

3 0
2 years ago
7x - 20 = 2x - 3(3x + 2)
kirill [66]

Answer:

7x-20=2x-3(3x+2)

We move all terms to the left:

7x-20-(2x-3(3x+2))=0

We calculate terms in parentheses: -(2x-3(3x+2)), so:

2x-3(3x+2)

We multiply parentheses

2x-9x-6

We add all the numbers together, and all the variables

-7x-6

Back to the equation:

-(-7x-6)

We get rid of parentheses

7x+7x+6-20=0

We add all the numbers together, and all the variables

14x-14=0

We move all terms containing x to the left, all other terms to the right

14x=14

x=14/14

x=1

   

   

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Angles 8th grade math
fiasKO [112]
Yeah... I'm normal good at angles, but the way you've taken the picture, it's pretty hard for us to figure out. All you need to do is grab you protractor and start measuring. Pretty simple.<span />
7 0
3 years ago
Read 2 more answers
All of the following are equivalent, except _____.
puteri [66]
Everything except 11x2
3 0
2 years ago
Read 2 more answers
Someone help me solve this expression please
Alex

Step-by-step explanation:

To solve, we have to remember PEMDAS (Parenthesis, Exponent, Multiply / Divide, Add or Subtract).

Here, the curly brackets act as parenthesis, so we solve that first.

• 3 + 7 = 10

Then, we multiply by 4.

• 10 • 4 = 40

Finally, we add 6 to 40.

• 40 + 6 = 46.

Our final answer: 46

6 0
2 years ago
Read 2 more answers
Other questions:
  • Each teacher can order 3 boxes of pencils for the school year. If 3 boxes together hold 82 pencils how many are in each box? If
    15·2 answers
  • -2x+3y=6 In slope intercept form
    12·1 answer
  • A triangle has sides with links that are consecutive odds intergers .The perimeter of the triangle is a hunt is 144 cm what's th
    14·1 answer
  • Factorise 8x+12<br> ffffffffffdfffdfdfd
    8·2 answers
  • X/5 + 3 = 9 <br> solve equation
    11·1 answer
  • WILL GIVE BRAINLYEST TO FIRST ANSWER
    12·2 answers
  • How do you multiply add and divide fractions?
    15·1 answer
  • 34. Find the average rate of change for x 0.5 to 35 for the following temperatures in degrees Fahrenheit
    13·1 answer
  • What is the first step when solving the equation 3(3x - 5x) + 2 = -8?​
    10·2 answers
  • A diagonal line labelled CD intersects a horizontal line labelled AB at point E forming an angle AEC. 
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!