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
timurjin [86]
3 years ago
8

8 + 12n – 4n – 7 Another problem pls dont troll or i will report you :)

Mathematics
1 answer:
loris [4]3 years ago
5 0

Answer:

Step-by-step explanation:

Do u see any similarities between the numbers? Both 12 and -4 have a variable(N). 8 and -7 dont have a variable, so u have to calculate them individually.

One thing to remember is just because there is a minus sign(-) or a plus sign(+) does not mean its addition or subtraction. its the value of the number. the sign to the left of the number is its value. so left of 12 is plus(+), so its a positive. left of 4 is a minus sign(-) so its a negative 4. lastly, left of 7 is minus sign(-), which means its negative 7. now u add.

lets add the variables first:

12n + (-4n) = 8n

add the regular numbers:

8 + (-7) = 1

so its 8n + 1

You might be interested in
Which value is equivalent to<br> 3/11?<br> OA A. 0.27<br> O<br> B. 0.27<br> OC<br> C. 3.6<br> OD. 3.
Sladkaya [172]

Answer:

0.27 repeating.

Step-by-step explanation:

So to solve this we just have to use division.

1 clearly doesnt go into 3 at least one time, so we can add a decimal point and add a 0 to make it 30.

11 goes into 30 2 times, so we have:

0.2

and 30-22=8

So we can add another 0 and make it 80.

Then 11 goes into 80 7 times. So we have:

0.27

and 80-77=3

So again, add the 0, we have 30.

11 goes into 30 2 times, so:

0.272

and 30-22=8

Add another 0 we get 80.

11 goes into 80 7 times.

So finally, we have:

0.2727.

This is a repeating decimal.

This can be shown as:

0.<u>27</u>

So this is your answer!

I was a bit confused with which one it was on your answer key, but knowing that it is 0.<u>27</u> I am guessing you can chose!

Hope this helps!

4 0
2 years ago
What point he plot to show how far he runs in 8 minutes and 12 minutes?​
Dmitriy789 [7]

Answer:

4

Step-by-step explanation:

because you subtract it.

8 0
3 years ago
Ajay bought a fan and a heater for rs 4000. He sold the fan at a profit of a 25% and the heater at a loss of 5%. If he gained 7%
Alborosie

Answer: Heater -Rs 2400; Fan- Rs 1600

Step-by-step explanation:

Given

Ajay bought a fan and a heater for Rs 4000

Suppose the price of fan is x and that of heater is 4000-x

Profit on the fan is 0.25x

Loss on heater is 0.05\times (4000-x)

Total profit is 7% i.e. 0.07\times 4000

\therefore 0.07\times 4000=0.25x-0.05(4000-x)\\\Rightarrow 280=0.25x-200+0.05x\\\Rightarrow 480=0.3x\\\Rightarrow x=1600

Thus, the price of heater is 4000-1600=Rs.\ 2400

Price of fan is Rs.\ 1600

Price of heater is Rs.\ 2400

8 0
3 years ago
What is 21/56 simplified
lozanna [386]
21=3\cdot7\\56=8\cdot7\\\\\frac{21}{56}=\frac{3\cdot\not7^1}{8\cdot\not7_1}=\boxed{\frac{3}{8}}
3 0
3 years ago
Read 2 more answers
Can someone help me? ​
zimovet [89]

Answer:

61.538

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • Using the greatest common factor for the terms, how can you write 56 + 32 as a product?
    9·1 answer
  • Solve for x. Please show answer step by step. Thanks
    12·2 answers
  • Amy and Henry shared a cash prize in the ratio 2:3. If Henry received $33, how much money did Amy receive?
    15·1 answer
  • What is the value of x?
    12·1 answer
  • Norman and Suzanne own 27 shares of a fast food restaurant stock and 63 shares of a toy company stock. At the close of the marke
    6·1 answer
  • Diana's spends 0. 8 hours per day at the pool if she goes to the pool for two days one week how many total hours does Diana spen
    5·1 answer
  • What is 74% of 44.I appreciate your help
    9·1 answer
  • Match each scenario with the integer that can be used to describe it.
    11·2 answers
  • The speed limit sign on the freeway said 110 kilometers per hour, but the speedometer on Cesar's car is calibrated in miles per
    13·1 answer
  • What is the sum of 12 – 5i and –3 4i? –16 63i 9 – i 9 – 9i 15 – 9i
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!