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
Lorico [155]
3 years ago
13

-3(2n+1)+7=5pls help homework do tomorrow

Mathematics
2 answers:
WINSTONCH [101]3 years ago
6 0
Distribute the -3 to both 2n and 1 (inside the parenthesis)

-3 x 2n = -6n
-3 x 1 = -3

-6n - 3 + 7 = 5

simplify

-6n + 4 = 5

isolate the n

-6n + 4 (-4) = 5 (-4)

-6n = 1

-6n(/-6) = 1(/-6)

n = -1/6

hope this helps
Elza [17]3 years ago
5 0
- 6n - 3 + 7 = 5
- 6n + 4 = 5
- 6n = 1
n = - 1/6
You might be interested in
a climber starts descending from 504 feet above sea level and keeps going until she gets to 40 feet below sea level, how may fee
GenaCL600 [577]

Answer:

544 feet.

Step-by-step explanation:

|504| +|-40|=544

8 0
3 years ago
Help and I will make you a brainllest
ahrayia [7]

Answer:

yes

Step-by-step explanation:

Hope this helps:)

3 0
3 years ago
Read 2 more answers
What value should be added to the expression to create a perfect square? x^2 - 20x
boyakko [2]
To complete the square:
we take the coefficient ox "x" (which in this problem is -20)
we divide it by 2
square that number
then add it to both sides of the equation

-20 / 2 = -10
-10^2 = 100
then we add 100 to both sides of the equation:
x^2 -20x
x^2 -20x +100 = 100
******************************************************
To get the roots of the equation, we take the square root of both sides:
(x -10) * (x-10) = 10
(x-10) = square root (10)
x-10 = <span> <span> <span> 3.1622776602 </span> </span> </span>
x1 = <span> <span> <span> 13.1622776602 </span>
and don't forget that square root of 10 also equals  </span></span><span><span><span> -3.1622776602 </span> </span> </span>
x2 = 10 -<span> <span> <span> 3.1622776602
x2 = </span></span></span> <span> <span> <span> 6.8377223398 </span> </span> </span>


4 0
3 years ago
Select the correct answer from each drop-down menu.
Alexxx [7]

Answer:

Graph B

No

Inside

Step-by-step explanation:

Let, the number of apples = x and number of peaches = y.

It is given that the farmer can afford maximum of 54 acres.

Thus, x + y ≤ 54.

Also, apples require 3000 gallons of water and peaches require 800 gallons of water each day.

Since, maximum amount of water is 80,000 gallons per day,

We get, 3000x + 800y ≤ 80,000.

It is required to maximize the profit given by z = 3400x + 1600y.

Thus, the system of equations becomes,

z = 3400x + 1600y

3000x + 800y ≤ 80,000.

x + y ≤ 54.

Plotting these equations gives the following graph.

We can see that the graph obtained is equivalent to Graph B.

Further, we know that the maximum value of the objective function z = 3400x + 800y is obtained at the boundary point of the solution region.

Thus, any point inside the solution region will give a feasible solution not maximum solution.

Hence, ( 30,20 ) will not maximize the profit as it lies inside the solution region.

8 0
3 years ago
Please help 50 points
Arlecino [84]
In vinegar with X and Y 5 when x 2.5 what is the value of y when x equals 20 I think the value is 0. 625
3 0
4 years ago
Read 2 more answers
Other questions:
  • 4 1/2 divided by 2 3/8
    9·1 answer
  • The dimensions of a conical funnel are shown below: A conical funnel is shown with the height of the cone as 7 inches and the ra
    15·2 answers
  • Henry needs 2 pints of red paint and 3 pints of yellow
    11·2 answers
  • Which one is heavier a pound of feathers or a pound of lead?
    5·1 answer
  • If a ball is dropped from 160 cm and rebounds to 120 cm on the first bounce, how high will the ball be on the 2nd bounce
    13·1 answer
  • Can someone please help me with this question asap! greatly appreciated!
    12·1 answer
  • Which fraction and decimal forms match the long division problem?
    13·2 answers
  • HELP ASAP!!!
    10·2 answers
  • I tried the math problem and i am not sure how to do factorization or multiplication.
    6·1 answer
  • Need help with courseReplace 250 with 575 and -3 with -5.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!