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2 years ago

Which answer choice?

Mathematics

1 answer:

Llana [10]2 years ago

6 0

Answer:

B or C,i think. I'm not sure though

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Question 8b , thanks

marta [7]

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

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

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

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

3 0

2 years ago

Volume How many fluid ounces are in each size?

kicyunya [14]

Answer:

1 cup = 8 fl oz

Step-by-step explanation:

1 cup = 8 fl oz

6 0

2 years ago

Which angles are in the exterior

Andre45 [30]

Answer:

a, b, f, and h

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Solve the following system of equations using the substitution method.

sergey [27]

Answer:

y=1; x=2

Step-by-step explanation:

Substitution:

x=2y

2x+5y=9

=> if x=2y, plug in the x value into other equation, so

----------------------------------------------------------------------------

2(2y)+5y=9

4y+5y=9

9y=9

y=1

You have the Y value, so now solve for X

-----------------------------------------------------------------------

plug in y value to x=2y

so x=2(1)

x=2

5 0

2 years ago

I need the answer fast please find the tan(b)

PSYCHO15rus [73]

Answer:

$\sf \dfrac{17}{25}$

Step-by-step explanation:

<h3>Trigonometry:</h3>

$\sf \boxed{\bf Tan \ B=\dfrac{oppoiste \ side \ to \ Tan \ B}{hypotenuse}}$

$\sf tan \ B =\dfrac{17}{25}$

6 0

1 year ago