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3 years ago

Evaluate, 2 x (390 - [5 x (10 - 4 divided by 2)] + 15) x 2= ?

2 answers:

5 0

$2 * (390 - [5 * (10 - \frac{4}{2})] + 15) * 2= x \\ 2 * (390 - [5 * (10 - 2)] + 15] * 2 = x \\ 2 * (390 - [5 * 8] + 15) * 2 = x \\ 2 * (390 - 40 + 15) * 2 = 2 * (365) * 2 = x \\ 730 * 2 = x \\ 1460 = x$

sladkih [1.3K]3 years ago

4 0

The answer is 1460 because use math equations to break it down

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Answer:

3 units

Step-by-step explanation:

Here, The distance between two points is 3 units

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3 years ago

X-1/x-2+x+3/x-4=2/(x-2).(4-x)

Varvara68 [4.7K]

The given equation x-1/x-2+x+3/x-4=2/(x-2).(4-x) is correct. the answer is proved.

According to the statement

we have given that the equation and we have to prove that the given answer is a correct answer for those equivalent equation.

So, The given expression are:

$\frac{x-1}{x-2} +\frac{x+3}{x-4} = \frac{2}{(x-2).(4-x)}$

And we have to prove the answer.

So, For this

$\frac{x-1}{x-2} +\frac{x+3}{x-4}$

$\frac{({x-1}) ({x-4}) +({x+3})({x-2})} {(x-2) (x-4)}$

Then the equation become

$\frac{x^{2} -4x -x +4 + x^{2} -2x + 3x -6 }{(x-2) (x-4)}$

Now solve it then

$2x^{2} - 4x -2 / (x-2) (x-4)$

Now take 2 common from answer then equation become

$\frac{x-1}{x-2} +\frac{x+3}{x-4} = \frac{2}{(x-2).(4-x)}$

Hence proved.

So, The given equation x-1/x-2+x+3/x-4=2/(x-2).(4-x) is correct. the answer is proved.

Learn more about equations here

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1 year ago

school spirit club wants to raise money by selling t-shirts. one local company charges a fixed fee of $75 for creating the desig

Kazeer [188]

Answer:

The profit = $(3x - 75) where x = number of t-shirts sold

Step-by-step explanation:

School spirit club wants to raise money by selling t-shirts. one local company charges a fixed fee of $75 for creating the design and $5 for each shirt that they print.

We have to find the club's income if they sell each t-shirt for $8.

Let the number of t-shirts that the club sell be equal to x.

So the cost of making x t-shirts = 75 + 5x

If the club sells x t-shirts , then the money they earn = 8x

Profit = selling price - cost price

= 8x - (75 + 5x)

= $(3x - 75)

The club also needs to sell at least 25 t-shirts to make a profit and from then on makes a profit of $3 on each t-shirt they sell.

6 0

3 years ago

A cell phone factory has a cost of production C(x) = 66x + 30,000 where x is the total number of attendees at the concert . The

dimulka [17.4K]

Answer:

8000-8500

Step-by-step explanation:

I can't manage to figure out the exact number without multiple choice answers. That is the closest I could get to finding out the answer. Good Luck!

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2 years ago

I need help with this

Tju [1.3M]

Answer:

He omitted the value "6" from the input value and added it to the output values. Also, he omitted the value "12" as an output value.

Step-by-step explanation:

Bobby didn't map the relation well. He omitted "6" which is supposed to be an input value and rather included it among the output values (y-values).

"12" was omitted also under output values.

All of these make the the relation not to be a function anymore.

If Bobby had mapped the relation well, the ordered pair would have obviously been a function as every x-value will have exactly one y-value assigned the it.

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2 years ago