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
serg [7]
3 years ago
10

How do you solve 7n-2=6n-2n

Mathematics
1 answer:
pantera1 [17]3 years ago
7 0
First combine like terms:
6n-2n = 4n
7n-2=4n
subtract 7n from both sides
7n-2=4n
-7n    -7n
-2=-3n
divide -2 on both sides.
n=1.5
You might be interested in
The diameter of a grain of sand is estimated to be about .0024 inches. Write the estimated diameter of a grain of sand in scient
Orlov [11]

Answer:

2.4 x 10-₃

Step-by-step explanation:

the numbers with NO zeros should be first and the first number should be turned to a whole so like "2.4". Since there are 3 zeros (including the zero in the whole number place) you would write the 3 as the number in the right corner. And there is a minus sign beside the 3 because the Zeros are first. :)

3 0
3 years ago
Solve *please show work* :)
Mashcka [7]

Answer:

E.200.5ft²

Step-by-step explanation:

To find the area of the composite figure we simply split it into two regular shapes, a half circle and a square, we then find the area of the two shapes individually and add them together.

Area of square = s² where s = side length

It appears the given side length is 12 so s = 12

Which means area = 12² = 144ft²

For semi circle

Area = 1/2(πr² ), where r is the radius

The side length of the square is shared with the diameter of the semi circle meaning that the diameter of the semi circle is 12

To convert to radius from diameter we simply divide by 2 so r = 12/2 = 6

We have area = 1/2(πr² ) and r = 6

So area = 1/2(π6²)

==> evaluate exponent

Area = 1/2(36π)

==> take one half of 36

Area = 18π

==> multiply 18 and π

Area = about 56.5

Finally we add the two areas together

Total area = 56.5 + 144 = 200.5ft²

4 0
2 years ago
Simplify to an expression of the form (a sin(θ)).<br> 2sin(/8)2cos(/8)
rjkz [21]

Answer:

Your expression equals 2 \sin(\frac{\pi}{4}) assuming the problem was to simplify 2\sin(\frac{\pi}{8}) 2\cos(\frac{\pi}{8}) to the form a\sin(\theta).

Step-by-step explanation:

2\sin(\frac{\pi}{8}) 2\cos(\frac{\pi}{8})

2(2)\sin(\frac{\pi}{8})\cos(\frac{\pi}{8})

Let's use the following identity: 2\sin(A)\cos(A)=\sin(2A)

2\sin(2 \cdot \frac{\pi}{8})

2 \sin(\frac{\pi}{4}) which is comparable to the form a\sin(\theta).

a=2

\theta=\frac{\pi}{4}

5 0
3 years ago
Evaluate 19-11+(-17)+(-19)+11
Nataliya [291]
The answer is -17 hope this helps
3 0
3 years ago
Read 2 more answers
Which algebraic expression is equivalent to the expression below?
JulijaS [17]

Step-by-step explanation:

7(4x + 9) - 4

= (7 × 4x) + (7 × 9) - 4

= 28x + 63 - 4

= <u>28x + 59</u>

So, 7(4x + 9) - 4 is equivalent to 28x + 59 (D)

<em>Hope </em><em>it </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>

6 0
3 years ago
Read 2 more answers
Other questions:
  • Y = -1/3x + 5<br> X = -3
    15·2 answers
  • Drake’s monthly outlay include a $70 phone bill and a $120 car assuming he makes $400 a month, how much does he have to spend af
    8·2 answers
  • A box contains a $1 bill, a $5 bill, a $10 bill, and a $20 bill. If two bills are selected at random what is the probability tha
    8·2 answers
  • A rectangle has vertices W(2,3).X(7,6), and Z(7,3).Describe how to find the side lengths of the rectangle without graphing
    11·1 answer
  • Ashley brought 7/8 gallon of lemonade to the party. her friends 2/3 drink of it. how many gallons of lemonade did they drink?
    11·1 answer
  • I am learning about estimating quotients using multiples. 188 divided by 5 =
    14·1 answer
  • Hellllppppppppp pleaseeee<br><br> Find the largest whole number to equal the length of the triangle
    7·1 answer
  • Please help me ASAP!!!
    7·1 answer
  • Rafael and his sister bought snacks for movie night.
    13·2 answers
  • Two angles are supplementary angles.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!