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
Dvinal [7]
3 years ago
14

What is the answer to 8x-9=12+11x

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
3 0

Answer:

x = -7

Step-by-step explanation:

8x - 9 = 12 + 11x

Subtract 11x to both sides of the equation. Then, it will look like this:

-3x - 9 = 12

Add 9 to both sides of the equation. After that, it will look like this:

-3x = 21

Divide both sides of the eqution by -3. Your answer is:

x = -7

You might be interested in
You draw two marbles without replacement from a bag containing 2 green marbles and 3 black marbles. What are the possible outcom
Step2247 [10]
2 greens
1 black 1 green
2 blacks
Hope this helps ;p have a nice day!

~pam
7 0
3 years ago
By exercising regularly, Abby was able to improve her running right this year. Last year, Abby ran a mile in 12 minutes. This ye
OleMash [197]

Answer:

She decreased her running time at a rate of 16.67%

Step-by-step explanation:

In this question, we are asked basically to calculate the percentage decrease in Abby’s running time.

Mathematically, the percentage decrease equals: (new running time - old running time)/old running time * 100%

We input the values and proceed as follows:

Percentage decrease = (10-12)/12 * 100

-2/12 * 100/1 = -1/6 * 100 = -16.67%

Since it’s a decrease, we just simply say that her running time decrease by 16.67%

4 0
3 years ago
Using the distance formula, d = √(x2 - x1)2 + (y2 - y1)2, what is the distance between point (-10, 12) and point (5, 3) rounded
Whitepunk [10]

Answer:

<h3>The answer is 17.5 units</h3>

Step-by-step explanation:

Using the distance formula

<h3>d =  \sqrt{ ({x2 - x1})^{2} +  ({y2 - y1})^{2}  }</h3>

the distance between (-10, 12) and (5, 3) is

<h3>d =  \sqrt{ ({5 + 10})^{2}  +  ({3 - 12})^{2} }</h3><h3>d =  \sqrt{ {15}^{2}  + ( { - 9})^{2} }</h3><h3>d =  \sqrt{225 + 81}</h3><h3>d =  \sqrt{306}</h3><h3>d = 3 \sqrt{34}</h3>

d = 17.492855

We have the final answer as

<h3>d = 17.5 units to the nearest tenth</h3>

Hope this helps you

4 0
3 years ago
Read 2 more answers
Identify the usual level of measurement for each of the following A. year in school B. IQ scores C. life expectancy D. fatigue E
Mashutka [201]

Answer:

The answer is C

Step-by-step explanation:

4 0
2 years ago
Which of the following equations is equivalent to x - y = 8?
matrenka [14]
Say x = 12 and y = 4 
12 - 4 = 8

Number 1
2(12) - 4(4) = 8
24 - 16 = 8
Number 1 is your Answer
4 0
3 years ago
Read 2 more answers
Other questions:
  • If SPSS output tells you that Sig. = .65, this means: a) There is a 65% probability the null hypothesis is true. b) There is a 6
    11·1 answer
  • In a pet store there are 35 dogs and 14 cats what is the ratio of dogs to cats
    8·2 answers
  • the attendence at a school football game was 350. tickets for adults cost $2.25 compared to $1.00 for children. if the total rec
    9·1 answer
  • What is 16 times 24.I need this answer for my area model help me
    13·2 answers
  • A company manufactures plastic eggs, filling each egg with either a prize - a piece of candy -or no prize – a rock. Natasha’s fa
    14·1 answer
  • Which ordered pair is a solution for the system of equations?
    15·1 answer
  • Find the measure of ∠BAC. Create another angle with the same measure. Measure the new angle to verify that it has the same angle
    6·1 answer
  • Dwayne is trying to find the fraction represented by the repeating decimal 0.5. He completes the three steps shown:
    14·2 answers
  • Simplify -8(4-3x)-(p+8)
    11·1 answer
  • Find the equation of the line through the point ( 3 , − 7 ) that is perpendicular to the line with equation y = x − 12 .
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!