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bixtya [17]
2 years ago
11

What is the solution to 3/(2x+1) = 9/3x?

Mathematics
1 answer:
Scorpion4ik [409]2 years ago
7 0

Answer:

Solution x = - 1

Step-by-step explanation:

3 / (2x+1) = 9 / 3x

Cross multiply

3(3x) = 9(2x + 1)

Distributive property

9x = 18x + 9

Subtract 18x from both sides

-9x = 9

Divide both sides by -9

x = -1

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$9 for adults and $6 for children. If the movie theater cashier collects $1719 from the sale of 200 tickets, how many adult tick
Bad White [126]

Hey there!!

We will have to solve this using 2 variables

Let's take the number of adults as ' x '

Let's the number of children as ' y '

The total number of tickets = 200

Let me explain this : If the total number of tickets is equal to 200, then the total number of people is equal to 200

Hence , x + y = 200

$9 for adults

The total cost for adult tickets = 9x

$6 for children

The total cost for children tickets = 6y

The total cost for these tickets = $1719

9x + 6y = 1719

3 ( 3x + 2y ) = 1719

3x + 2y = 573

...................................................................................................................................................

Now we have two equations

x + y = 200 ------------- ( 1 )

3x + 2y = 573 ---------- ( 2 )

Now let's multiply the first equation with 2

2 ( x + y ) = 2 ( 200 ) -------- ( 1 )

3x + 2y = 573

.......................

2x + 2y = 400

3x + 2y = 573

Now let's subtract the first equation from second

- ( 2x + 2y )  = - ( 400 )

3x + 2y = 573

..............................

-2x - 2y = - 400

3x + 2y = 573

x = 173

Hence , the number of adult tickets sold = 173

The required answer = 173

Hope my answer helps!

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What is the angle of L​
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Step-by-step explanation:

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