help pls math question​

Answer:

x = 11/7 y = -1/7

Step-by-step explanation:

2x + y = 3

2x + y - 2y = 3 - 2y

y = 3 - 2x

x - 3(3 - 2x) = 2

x - 9 + 6x = 2

x - 9 + 6x + 9 = 2 + 9

x + 6x = 11

7x = 11

7x / 7 = 11/7

x = 11/7

2(11/7) + y = 3

22/7 + y = 3

22/7 + y - 22/7 = 3 - 22/7

y = -1/7

Answer:

(¹¹⁄₇, -⅐)

Step-by-step explanation:

Given system of equations:

[tex]\begin{cases}2x+y=3&\\x-3y=2\end{cases}[/tex]

What is the elimination method?

The elimination method is when you rewrite the two equations so that when added together, one of the two variables (x or y) is eliminated.

Step 1: Multiply the first equation by [tex]3[/tex].

[tex]\implies (3)2x+(3)y=(3)3[/tex]

[tex]\implies 6x+3y=9[/tex]

Step 2: Add the above equation to the second equation to eliminate 3y.

[tex]\begin{array}{r l}6x+3y & = 9\\+\ x-3y&=2\\\cline{1-2}7x&=11 \end{array}[/tex]

Step 3: Solve for x (by dividing both sides by 7).

[tex]\implies \dfrac{7x}{7}=\dfrac{11}{7}[/tex]

[tex]\implies \boxed{x=\dfrac{11}{7}}[/tex]

Step 4: Substitute ¹¹⁄₇ as the value of [tex]x[/tex] in any of the given equations and solve for [tex]y[/tex].

[tex]\implies 2\left(\dfrac{11}{7}\right)+y=3[/tex]

[tex]\implies \dfrac{22}{7}+y=3[/tex]

Step 5: Convert [tex]3[/tex] into a fraction and subtract ²²⁄₇ from both sides of the equation.

[tex]\implies \dfrac{22}{7}-\dfrac{22}{7}+y=\dfrac{21}{7}-\dfrac{22}{7}[/tex]

[tex]\implies \boxed{y=-\dfrac{1}{7}}[/tex]

The solution to the given system of equations is (¹¹⁄₇, -⅐).

Learn more here:

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Answer:

231 miles.

Step-by-step explanation:

79*3 = 237

237-6 = 231.

Answer:

A

Step-by-step explanation:

The rest of the choices don't make sense.

Answer:

A

Step-by-step explanation:

A because you want to get a thought of what it is

Answer:

It should be <AFB

Step-by-step explanation:

The reason is that supplementary angels add up to 180 degrees which is a flat line and <AFB and <CFA do that

Using the Poisson distribution, it is found that there is a 0.8647 = 86.47% probability of at least one flaw appearing in 300 square feet.

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by:

[tex]P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}[/tex]

The parameters are:

Flaws in a certain type of drapery material appear on the average of one in 150 square feet, hence, considering 300 square feet, the mean is of:

[tex]\mu = \frac{300}{150} \times 1 = 2[/tex]

The probability of at least one flaw appearing in 300 square feet is given by:

[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]

In which:

[tex]P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}[/tex]

[tex]P(X = 0) = \frac{e^{-2}2^{0}}{(0)!} = 0.1353[/tex]

Then:

[tex]P(X \geq 1) = 1 - 0.1353 = 0.8647[/tex]

0.8647 = 86.47% probability of at least one flaw appearing in 300 square feet.

More can be learned about the Poisson distribution at https://brainly.com/question/13971530

Answer:

20 out of 28 games.

Step-by-step explanation:

28 divided by 7 is 4.

5 times 4 is 20.

20 out of 28 games.

(This is simple math honestly.)

Step-by-step explanation:

area of ∆ = .5*pq*qr* sin q

= 23.63

Answer:

Clear the fraction first which means multiply both side by the reciprocal (2)

2a = bh

Divide both sides by b since you are solving for h

Your answer is 2a/b = h

Answer:

Step-by-step explanation:

The ratio of males to females at a gym is 4:5. There are 20 females at the gym. How many males are in the gym?​

4 : 5 = x : 20

x = 4 * 20 : 5

x = 16

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

check

4 : 5 = 16 : 20

4 : 5 = 4 : 5

the answer is good

Answer:

302.33

Step-by-step explanation:

Answer:

302.333... Its a repeating number.

Step-by-step explanation:

what do you mean by that?

Answer:

➢ The multiplication property of equality states that when we multiply both sides of an equation by the same number, the two sides remain equal. Example 1 : Lisa and Linda have got the same amount of money. ... Multiply both sides by 4.

Step-by-step explanation:

HOPE IT WILL HELP YOU

[tex]kai6417[/tex]

#carry on learning

Answer:

1. f(x) - 7

2. The lines do not have same x-intercept

3. a(x) = f(x+7)

4. b(x) = f(x-3)

5.  c(x) = f(x) + 5 and c(x) = f(x+5) are two functions that can represent c(x)

6. a. g(x) = f(x-8)

   b. Slope of g(x) = 1                                        

   c. y-intercept = (0, -8)

7. a. p(x)=f(x+6) is vertical transformation of f(x) = x. f(x) is the parent function.

   b.(please check explanation section.)

For the second page, here are the answers

5.

a. False

The slope of f(x) will be steeper than m(x)

b. False

The y-intercept doesn't change due to multiplication of 3/5

6. C. h(x) = 3f(x-5)

7. d(x) = 1/4 f(x) + 9

8. Erika: c(x) = 4f(x) + 4 is the first graph

Landry: c(x) = -4f(x) + 3 is the second graph

Step-by-step explanation:

1. f(x) - 7 = x - 7 ( y intercept is translated down when g(x) = x - k )

2. The lines do not have same x-intercept. ( x-intercept of f(x)=x is (0,0) and that of f(x-10) is (0,10)

3. a(x) = f(x) + 7 = x + 7 = f(x+7)

4. b(x) = f(x) - 3 = x - 3 = f(x-3)

5. c(x) = f(x) + 5 = x + 5 = f( x+5)

   c(x) = f(x) + 5 and c(x) = f(x+5) are two functions that can represent c(x)

6. a. g(x) = f(x) - 8 = x -8 = f(x-8)

    b. Slope of g(x) = Slope of f(x)      

         Slope of f(x) =  d(f(x)/dx = dx/dx = 1

          Therefore Slope of g(x) = Slope of f(x) = 1      

c. y-intercept = (0, -8)       (In this case The y-intercept of g (x)=f(x-8) is translated down as -8<0 by 8 units.)

7.  b. Look at the graph for part b

Now for the second page, here are the steps

look at the pictures, they show the steps and solution

Answer:

$9 per hour

Step-by-step explanation:

   Total number of hours = hours each night x number of nights

⇒ Total number of hours = 2 x 10 = 20 hours

   Hourly rate = total earned ÷ total number of hours

⇒ Hourly rate= 180 ÷ 20 = 9

Therefore, hourly rate = $9 per hour

Answer:

9 dollars per hour

Step-by-step explanation:

First determine the total number of hours

2 hours * 10 nights = 20 total hours

Divide the total amount paid by the total hours to get the rate

180 /20 = 9

She is paid 9 dollars per hour

The multiplier that would be used to calculate the depreciation of the car is 0.83^y.

Depreciation is when the value of an asset declines due to wear and tear.

The equation that can be used to represent depreciation is:

Value of the asset x (1 - rate of depreciation)^years

$31,000 x 0.83^y.

To learn more about depreciation, please check: https://brainly.com/question/25552427

Functions can be represented using equations and graphs

The key features are (1) both f(x) and g(x) include domain values of [3, ∞) and range values of (0, ∞), and both functions are positive for the entire domain.

The functions are given as:

[tex]f(x) = 3^x[/tex]

[tex]g(x) = \sqrt{ x - 3}[/tex]

Using a graphing calculator:

By comparing the above highlights, the true statement between functions g(x) and f(x) is option (1)

Read more about function domain and range at:

https://brainly.com/question/10197594

Step-by-step explanation:

9.

the first we see when going from left to right : the line goes down, so it has a negative slope (factor of x).

then we look at the y-intercept (the point where the line crosses the y-axis) : negative y and around -5.

with all that we have eliminated B and D.

and not only does the line go down, it goes sharply down. so, the absolute value of the slope must be bigger.

therefore, C is the right answer.

and a quick check confirms, as the slope -10/3 means that for a change of x by +3 units causes y to change by -10, and that is what we are seeing on the chart.

at x = -3 it looks like y is about +5.

and at x = 0 (change by +3) it looks like y is about -5 (change by -10).

10.

the y-intercept does not give us a clue here, it is 1 for all 4 options, and the graph confirms it.

but this line goes up, so the slope is positive.

it is rather "flat" and by far not even diagonally, so the absolute value of the slope must be a small value (much smaller than 1, as a slope of 1 means "diagonally").

therefore, D is the right answer.

a quick check confirms, as the slope 1/5 means that for a change in x by +5 would lead to a change in y by +1.

and that is what we are seeking on the chart.

at x = -5 it looks like y is about 0.

at x = 0 (change by +5) it looks like y is about +1 (change by +1) - the y-intercept.

Answer:

180-115=65

180-65-80= 25

y = 25

Answer:

b = 17    t = 12

Step-by-step explanation:

5b = 85

5b/5 = 85/5

b = 17

t/3 = 4

t/3 x 3 = 4 x 3

t = 12

:

Multiples of 2 are: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ………… etc. Multiples of 5 are: 5, 10, 15, 20, 25, ………… etc. Therefore, common multiples of 2 and 5 = 10, 20, ………..etc.

Answer:

[tex]\frac{13}{32}[/tex]

Step-by-step explanation:

Answer:

13,21,34,55,89,144,233,377

Step-by-step explanation:

i did it in my mind and im correct

prob

Answer:

The first part is correct! → There are 4 distinct instruments to distribute to 4 distinct people. And there are 4!=24 distinct ways of doing this.

For the second part. → Jay and Jack can only play 2 instruments, therefore we have 2 instruments for 2 people, and the distribution for these guys can be made in 2!=2 distinct ways.

Then, note that all that is left are 2 distinct instruments for 2 people. So there is an additional 2 distinct ways of doing this distribution for these other guys.

By the product rule, in total, we can do 4 distinct distribution in this condition.

Step-by-step explanation:

Please mark me as brainliest

Answer:

$3863.17

Step-by-step explanation:

This is simple adding and subtracting.

3000.00

   345.97

   567.20

+ 150.00

4063.17

  -200.00

 $3863.17

Answer:

[tex]{ \tt{L = 4\pi zt + 5\pi {z}^{2} }} \\ \\ { \tt{L = \pi z(4t + 5z)}} \\ \\ { \tt{ \frac{L}{\pi z} = 4t + 5z}} \\ \\ { \tt{4t = \frac{L}{\pi z} - 5z}} \\ \\ { \tt{t = \frac{L}{4\pi z} - \frac{5z}{4} }} \\ \\ { \boxed{ \tt{t = \frac{L - 5\pi {z}^{2} }{4\pi z} }}}[/tex]

What is the percent​ increase from $200 to $280?

There was 40% increase from $200 to $280

What would be the percent increase if the airline charges an additional​ $50 baggage fee with the new ticket​ price?

There was 65% increase with the baggage fee.

#1

Rate of increase (Percent increase)

[tex]\\ \tt\hookrightarrow \dfrac{80}{200}\times 100[/tex]

[tex]\\ \tt\hookrightarrow 40\%[/tex]

#2

Percent increase:-

[tex]\\ \tt\hookrightarrow \dfrac{130}{200}(100)[/tex]

[tex]\\ \tt\hookrightarrow 65\%[/tex]