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sergeinik [125]
2 years ago
12

3x-1 = 5x - 11 what is x​

Mathematics
1 answer:
Karo-lina-s [1.5K]2 years ago
4 0

Answer:

x = 5

Step-by-step explanation:

3x-1 = 5x-11

<em>Subtract 3x from both sides:</em>

-1 = 2x - 11

<em>Add 11 to both sides:</em>

10 = 2x

<em>Divide both sides by 2:</em>

5 = x

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Quantity of Jackets Price (in whole dollars) Total Revenue Marginal Revenue Total Cost Marginal Cost Profit (or loss) 0 20 1 20
KonstantinChe [14]

Answer:

18 dollars

Step-by-step explanation:

Marginal cost can be defined as the additional cost to produce every additional unit of a certain good. In mathematical terms;

Marginal cost = change in cost / change in quantity

For seven jackets, we have to find the difference between the cost of seven jackets and the cost of six jackets as follows

$101 - $83 = $18

Since the change in quantity is one, our marginal cost comes to $18.

3 0
3 years ago
At Friday's football game, 1,294 tickets were sold for a total amount of $8,816.00. If each student ticket costs $5.00, and each
NeTakaya

Answer:

512 student tickets.

Step-by-step explanation:

Let x be number of student tickets and y be number of adult tickets.

We have been given that at Friday's football game 1,294 tickets were sold. We can represent this information as:

x+y=1294...(1)

We are also told that each student ticket costs $5.00, and each adult ticket costs $8.00 and 1,294 tickets were sold for a total amount of $8,816. We can represent this information as:

5x+8y=8,816...(2)

From equation (1) we will get,

y=1294-x

Substituting this value in equation (2) we will get,

5x+8(1294-x)=8,816

5x+10352-8x=8,816

-3x+10352=8,816

-3x=8,816-10352

-3x=-1536

x=\frac{-1536}{-3}

x=512

Therefore, 512 student tickets were purchased at Fridays football game.

6 0
2 years ago
Find the value of x then classify the triangle by its angles
kupik [55]
X = 72 and it's a scalene triangle
5 0
3 years ago
A 100% increase followed by a 50% decrease
just olya [345]

Answer:

We end up with our original number

Step-by-step explanation:

Let x be our number

We increase by 100

increase = old number * 100%

increase = x*1

increase = x

New number = old number + increase

                       = x+x

                         =2x

Now we decrease by 50%

decrease = number *50%

                = 2x*.5

                =x

Final number = new number - decrease

                       = 2x-x

                         =x

4 0
3 years ago
Read 2 more answers
Please help asap..............
Evgen [1.6K]

Answer:

what's the context of this?

6 0
3 years ago
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