3 years ago

Solve the literal question 2a-b.=8b-4a for a

1 answer:

4 0

Just good ole algebraic manipulation
$2a - b = 8b - 4a$
First, Let's Combine Common Terms

$(2a + 4a) = (8b + 1b) \\ 6a = 9b$
Now Let's Divide

$\frac{6a}{6} = \frac{9b}{6} \\ a = \frac{9b}{6}$
Let's Simplify That Fraction

$a = \frac{9}{6} \times \frac{b}{1} \\$
Answer

$a = \frac{3b}{2} \:$

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We have that
<span>n (n-1) -4

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the answer is
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Step-by-step explanation:

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3 years ago

Read 2 more answers

A swim meet has 13 contestants signed up for the 100-meter butterfly event. The first heat has 6 swimmers. How many different wa

tino4ka555 [31]

Answer:

6 swimmers in the first heat can be arranged in 1716 different ways.

Step-by-step explanation:

A swim meet has 13 contestants signed up. To calculate the arrangement of first 6 swimmers in first heat we will use combinations because order doesn't matter.

So to select 6 swimmers out of 13 contestants number of different ways

= $^{13}C_{6}$