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
denis23 [38]
2 years ago
11

12) -6n – 20 = -2n +4(1 – 3n) What’s the first step

Mathematics
1 answer:
EastWind [94]2 years ago
4 0

Answer:

n = 3

Step-by-step explanation:

-6n - 20 = -2n + 4 (1-3n)

First distribute the 4 (1-3n)

-6n - 20 = -2n + 4 - 12n

Combine like terms on the right side

-6n - 20 = -14n + 4

Get 'n' on one side by adding -6n to both sides

-20 = -8n + 4

Subtract 4 to both sides

-24 = -8n

Divide -8 to both sides

3 = n

You might be interested in
What is the meaning of the slope of the line ?
Mila [183]

Step-by-step explanation: In algebra, we use the word <em>slope</em> to describe how steep a line is and slope can be found using the ratio <em>rise/run </em>between any two points that are on that line.

The ratio <em>rise/run</em> is the equal to the rate of change

or the <em>change in y/change in x</em>.

In algebra, the rate of change or the <em>change in y/change in x</em> or

the <em>rise/run</em> is also called the slope of a line.

4 0
2 years ago
Please help me with this math question ​
Leona [35]

Answer:

X + Y - W - Z = 180

Step-by-step explanation:

In parallel lines If you use the rules of:

* Alternate angles are equal

* Linear Pair Angles supplement to 180

And use the picture below for calculating the result: finally we get

Z = Y - (180 - (X - W)) which becomes the answer above if you simplify the parentheses.

5 0
2 years ago
Despite control measures, the pigeon population in Winchester is increasing by 10% each year. If there are currently 9,520 pigeo
TEA [102]

Using an exponential function, it is found that there will be 32,866 pigeons in 13 years.

<h3>What is an exponential function?</h3>

An increasing exponential function is modeled by:

A(t) = A(0)(1 + r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

The initial value and the growth rate are given by:

A(0) = 9520, r = 0.1.

Hence the function is given by:

A(t) = 9520(1.1)^t

Hence in 13 years, the amount of pigeons will be of:

A(13) = 9520(1.1)^{13} = 32866

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

3 0
2 years ago
I need some help with my math question
abruzzese [7]

Answer:

C

Step-by-step explanation:

There are same number on -2, -1 1 ,2

and it also means that 0,0 is the minime

3 0
3 years ago
Read 2 more answers
He normal pulse rate of a 13-year-old is between 70 and 100 beats per minute. As part of a health program, the medical staff at
SVEN [57.7K]
From the box plot, it can be seen that for grade 7 students,
The least value is 72 and the highest value is 91. The lower and the upper quartiles are 78 and 88 respectively while the median is 84.

Thus, interquatile range of <span>the resting pulse rate of grade 7 students is upper quatile - lower quartle = 88 - 78 = 10

</span>Similarly, from the box plot, it can be seen that for grade 8 students,
The least value is 76 and the highest value is 97. The lower and the upper quartiles are 85 and 94 respectively while the median is 89.

Thus, interquatile range of the resting pulse rate of grade 8 students is upper quatile - lower quartle = 94 - 85 = 9

The difference of the medians <span>of the resting pulse rate of grade 7 students and grade 8 students is 89 - 84 = 5

Therefore, t</span><span>he difference of the medians is about half of the interquartile range of either data set.</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • The equation of a circle is x2 + (y - 10)2 = 16.
    9·1 answer
  • Factor completely 3x2 -21
    6·1 answer
  • Find the midpoint of the line segment with the given endpoints. <br>(14, -6), (13, 14)<br>​
    9·2 answers
  • Solve √(2x+3)=x for x showing work
    8·1 answer
  • Estimate a 15% tip on a dinner bill of $49.76 by first rounding the bill amount to the nearest ten dollars​
    8·2 answers
  • Debra has $270 at most to spend on CLOTHES l. she wants to buy a pair of Jean's for $165 and spend. the rest on tshirts. Each t-
    10·2 answers
  • Find: tan A
    9·1 answer
  • Solve the equation 6(x-5)=4x+20
    14·2 answers
  • What are the coordinates of the midpoint of the segment whose endpoints are A(-3,-5) and B(2,7) ?​
    7·1 answer
  • The solution to a quadratic are called
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!