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
omeli [17]
3 years ago
11

7/2x+1/2x = 18+ 9/2x

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
4 0

Answer:

x=-36

Step-by-step explanation:

Add the 7/2x +1/2x to be 8/2x which means that it'll be 4x=18=9/2

then subtract 9/2x on both sides so itll be

4x=18+\frac{9}{2} x

-9/2x       -9/2x

-\frac{1}{2} x=18   because if you do 8/2-9/2 it's -1/2

then multiply the reciprocal to both sides so

(\frac{2}{-1})(-\frac{1}{2}x)=(\frac{2}{-1})(18)

which then cancels out -1/2 and makes it

x=-36

You might be interested in
I need help with #2 please help and I need the work
stellarik [79]
Laila has to pay $75 regardless of how many shirts she gets but has to pay an additional $8 per shirt. So when you set up your equation you are going to set it equal to c (the total cost). So c=75+8x. The reason there is a variable after 8 is because we aren’t sure how many shirts she’s buying yet.
8 0
3 years ago
Solve. X^2+20x+100=50
choli [55]
1. You con solve the quadratic equation x^2+20x+100=50<span> by following the proccedure below:
 
 2. Pass the number 50 from the right member to the left member. Then you obtain:
 
 x^2+20x+100-50=0
</span><span> x^2+20x+50=0
</span><span> 
 3. Then, you must apply the quadratic equation, which is:
 
 x=(-b±√(b^2-4ac))/2a
 
 </span><span>x^2+20x+50=0
</span><span> 
 a=1
 b=20
 c=50
 

  4. Therefore, when you simplify, the result is:
 
  -10</span><span>±5</span>√2   (It is the last option).<span>


 
 
 
 
 
 </span>
5 0
3 years ago
Does anyone know what would be the equation for this Emily has $250 in her savings account. She plans to save $15 per week from
GenaCL600 [577]
Answer: 10 weeks
Step-by-step explanation:
Nilda's money = 250 +15x being x the number of weeks that have passed
Lona's money= 200+20x
If they have the same amount, then
250+15x=200+20x
250-200=(20-15)x
50=5x
50/5=x
10=x
6 0
3 years ago
Read 2 more answers
Find the slope of line passing through the two points, (7, 1) and (-2, 1).
Mamont248 [21]

Answer: m = 0

Step-by-step explanation:

Slope (m) = y2 - y1/,x2 - x1 : meaning increase in y divided by increase in x . it can also be written as ∆y/∆x

y1= 1, y2 = 1, x1 = 7, x2 = -2

Substitute for those values in the equation above

m = 1 -1/-2 - 7

= 0/-9

Therefore,

m = 0

The slope of the line passing through those coordinates = 0

3 0
3 years ago
the relationship between money earned and hours worked is linear. joe computes the slope between (4, 30) and (12, 90), then comp
julia-pushkina [17]
Slope = rise/run =[y2-y1]/[x2-x1]

1) slope = [90 - 30] / [12 - 4] = 60 / 8 = 15/2

2) slope = [75 - 30] / [10 - 4] = 45 / 6 = 15 / 2

The slopps are equal.
6 0
3 years ago
Read 2 more answers
Other questions:
  • At Smith Mountain Orchard, 3 pounds of apples cost $3.24.
    8·1 answer
  • -<br>tan(130°) - tan(75°)/<br>1 + tan(130°)tan(75)<br>​
    5·1 answer
  • A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 512 babies were born, an
    15·1 answer
  • Whats a multiplication expression with a product of five to the 13th power
    15·1 answer
  • Pants are now on sale for 2 for $58.00. They are normally priced at $39.00 each. If Isabella buys 4 pants, then how much will Is
    12·1 answer
  • A company manufactures and sells x television sets per month. The monthly cost and​ price-demand equations are ​C(x) = 73,000 +
    10·1 answer
  • Y
    7·1 answer
  • EFECTUAR POR FAVORRRRRRRRRRRRRRRRRRRRRRRRRRRR
    15·1 answer
  • At Walt Disney World, 2 pretzels and 3 cans of soda cost $15.50. Four pretzels and five cans of soda cost $28.50. Which system o
    9·1 answer
  • My dog, Lilly, weighs 3.8 pounds.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!