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
slavikrds [6]
2 years ago
13

Question 8b , thanks

Mathematics
1 answer:
marta [7]2 years ago
3 0

Answer:

Step-by-step explanation:

a = \frac{2b+1}{3b-1}

b = 2/3

2b + 1 = 2*\frac{2}{3}+1\\\\=\frac{4}{3}+1\\\\=\frac{4}{3}+\frac{3}{3}\\\\=\frac{7}{3}\\\\3b-1 = 3*\frac{2}{3}-1\\\\=2- 1 = 1\\\\\\

a = \frac{2b+1}{3b-1}\\\\a=\frac{\frac{7}{3}}{1}\\\\=\frac{7}{3}\\\\

a = 7/3

b)

\frac{2b+1}{3b-1}=a\\\\

Cross multiply,

2b + 1 = a*(3b - 1)

2b + 1 = a*3b - 3*a

2b + 1 = 3ab- 3a

2b = 3ab - 3a - 1

2b - 3ab = -3a  - 1

b(2 - 3a) = -3a - 1

b =\frac{-3a - 1}{2 - 3a}

You might be interested in
1.<br> Solve the equation.<br> 35.3 = d - (-2.81)<br> 38.11<br> 32.49<br> -38.11
belka [17]
35.3 = d - (-2.81)

Double negative = positive

35.3 = d + 2.81

Now subtract 2.81 on both sides

32.49 = d
5 0
3 years ago
There are 36 windows in the Folsom’ house. The number of window is 3 times as many as the number of closets and 4 more than the
Viefleur [7K]
36x4=144
36x3=78
144-78=66
8 0
3 years ago
Read 2 more answers
Hexagon ABCDEF has has vertices A(-2,4), B(0,4), C(2,1), D(5,1), E(5,-2), F(-2,-2). Sketch the figure on the coordinate plane. W
Andreyy89
<span>A regular hexagon is defined as a hexagon that is both equilateral and equiangular. It is bicentric, meaning that it is both cyclic (has a circumscribed circle) and tangential (has an inscribed circle). The common length of the sides equals the radius of the circumscribed circle, which equals {\displaystyle {\tfrac {2}{\sqrt {3}}}} {\displaystyle {\tfrac {2}{\sqrt {3}}}} times the apothem (radius of the inscribed circle). All internal angles are 120 degrees. A regular hexagon has 6 rotational symmetries (rotational symmetry of order six) and 6 reflection symmetries (six lines of symmetry</span>
8 0
3 years ago
3x−1−(x+3)=1 PLEASE HELP IDK HOW TO DO IT
torisob [31]

Answer:

x = 5/2

x = 2 1/2

x = 2.5

Step-by-step explanation:

3x - 1 - (x + 3) = 1

3x - 1 - x - 3 = 1

2x - 1 - 3 = 1

2x - 4 = 1

2x = 1 + 4

2x + 5

2x = 5

x = 5/2 → 2 1/2 → 2.5 ( can be written in any of these forms depending on what you need to do)

<em>Hope this helped! :)</em>

7 0
3 years ago
Read 2 more answers
The following data were given in a study of a group of 1000 subscribers to a certain magazine:
Yanka [14]

5 wohld be the correct answer

5

3 0
3 years ago
Other questions:
  • Rachel's average score after 6 tests is 83. If Rachel earns a score of 97 on the 7th test, what is her new average?
    15·1 answer
  • Work out<br> a) 1 divided by 1/9
    7·2 answers
  • Someone please help :(
    12·2 answers
  • Arithmetic Geometric or Neither...
    10·1 answer
  • 525 divided by 9 I forgot how to divide
    12·1 answer
  • Decompose 2 ⅜ Plz help
    9·1 answer
  • A triangle is located on a three-dimensional coordinate plane. Matrix A shows the location of each vertex, where the first colum
    14·2 answers
  • Freeeee points.heehehe<br>​
    14·2 answers
  • Helppp asapppppppppp
    13·1 answer
  • Select the correct answer.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!