Solve using the substitution method
16x – 4y = 16
4x - 4 = y​

Answers

Answer 1

Answer:

y = 4 x − 4

Step-by-step explanation:


Related Questions


A building security code has 2 numeric
digits, O through 9, followed by 2 letters.
What is the probability that the first digit
is 9 and the last letter is A?

Answers

Answer:

Step-by-step explanation:

First number is 1/10

Last letter is 1/26

The second digit is 1/9

The first letter is 1/25

1/10 * 1/26 * 1/9 * 1/25

0.00001709

This assumes no duplication is allowed,

If there are duplications

then 1/10 * 1/10 * 1/26 * 1/26

0.000014782

The perimeter of a park is 300 feet the length of the park is 50 feet longer than the width. Find the length

Answers

Answer:

55.41 feet

Step-by-step explanation:

Let the width be x.

ATQ, (x+50)*x=300, x=5*srt(37)-25=5.41. Length is 55.41 feet

Use the substitution method to solve this system.
y = 2x+4
3x+y = 9

Answers

Answer:

x = 1; y=6

Step-by-step explanation:

y = 2x +4

3x + y = 9

Substitute 2x+4 for y in 3x+y = 9

3x + y = 9

3x + 2x+4 = 9

5x + 4 = 9

5x = 9-4

5x = 5

5x/5 = 5/5

x = 1

Substitute 1 for  x in y = 2x +4

2(1) + 4

2 + 4

= 6

Answered by Gauthmath

Answer:

x = 1, y = 6

Point: (1, 6)

Step-by-step explanation:

y = 2x + 4

3x + y = 9

Since it’s saying that y = 2x + 4, substitute y for y = 2x + 4 in the second equation.

3x + 2x + 4 = 9

Add 3x + 2x (combining like terms)

5x + 4 = 9

Subtract 4 from 9

5x = 5

Solve for x

x = 1

Use x in the first equation.

y = 2x + 4

y = 2(1) + 4

y = 2 + 4

y = 6

Therefore x = 1 and y = 6
•••••••••••••••••••••••••••••••••••••••••••••••••
Check if the work is correct!

y = 6

x = 1

6 = 2(1) + 4

6 = 2 + 4

6 = 6


3(1) + (6) = 9

3 + 6 = 9

9 = 9

Will give brainliest answer

Answers

Answer:

14 hours

Step-by-step explanation:

Take any two consecutive high tides and to find their x coordinatey and sub them..

Find f(-2) if f(x) =x^4 +2x^2-1

Answers

Answer:

Plug -2 in for x of f(x)

--> -2^4 + 2(-2)^2 - 1

---> 23

f(-2) = 23

A restaurant operator in Accra has found out that during the lockdown,if she sells a plate of her food for Ghc 20 each,she can sell 300 plates but for each Ghc5 she raises the price,10 less plates are sold. A.Draw a table relating 5 different price levels with their corresponding number of plates sold.

B.Use the table to find the slope of the demand

C.Find the equation of the demand fraction.

D.Use your equation to determine the price in Ghc if she sells one plate of food to maximize her revenue

Answers

The demand equation illustrates the price of an item and how it relates to the demand of the item.

The slope of the demand function is -1/2The equation of the demand function is: [tex]R(x) = (300 - 10x) \times (20 + 5x)[/tex]The price that maximizes her revenue is: Ghc 85

From the question, we have:

[tex]Plates = 300[/tex]

[tex]Price = 20[/tex]

The number of plates (x) decreases by 10, while the price (y) increases by 5. The table of value is:

[tex]\begin{array}{cccccc}x & {300} & {290} & {280} & {270} & {260} \ \\ y & {20} & {25} & {30} & {35} & {40} \ \end{array}[/tex]

The slope (m) is calculated using:

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

So, we have:

[tex]m = \frac{25-20}{290-300}[/tex]

[tex]m = \frac{5}{-10}[/tex]

[tex]m = -\frac{1}{2}[/tex]

The equation of the demand is as follows:

The initial number of plates (300) decreases by 10 is represented as: (300 - 10x).

Similarly, the initial price (20) increases by 5 is represented as: (20 + 5x).

So, the demand equation is:

[tex]R(x) = (300 - 10x) \times (20 + 5x)[/tex]

Open the brackets to calculate the maximum revenue

[tex]R(x) =6000 + 1500x - 200x - 50x^2[/tex]

[tex]R(x) =6000 + 1300x - 50x^2[/tex]

Equate to 0

[tex]6000 + 1300x - 50x^2 =0[/tex]

Differentiate with respect to x

[tex]1300 - 100x =0[/tex]

Collect like terms

[tex]100x =1300[/tex]

Divide by 100

[tex]x =13[/tex]

So, the price at maximum revenue is:

[tex]Price= 20 + 5x[/tex]

[tex]Price= 20 + 5 * 13[/tex]

[tex]Price= 85[/tex]

In conclusion:

The slope of the demand function is -1/2The equation of the demand function is: [tex]R(x) = (300 - 10x) \times (20 + 5x)[/tex]The price that maximizes her revenue is: Ghc 85

Read more about demand equations at:

https://brainly.com/question/21586143

Now there is a square city of unknown size with a gate at the center of each side. There is a tree 20 b from the north gate. That tree can be seen when one walks 14 bu from the south gate, turns west and walks 1775 bu. Find the length of each side of the city.

Answers

Answer:

The length of each side of the city is 250b

Step-by-step explanation:

Given

[tex]a = 20[/tex] --- tree distance from north gate

[tex]b =14[/tex] --- movement from south gate

[tex]c = 1775[/tex] --- movement in west direction from (b)

See attachment for illustration

Required

Find x

To do this, we have:

[tex]\triangle ADE \sim \triangle ACB[/tex] --- similar triangles

So, we have the following equivalent ratios

[tex]AE:DE = AB:CB[/tex]

Where:

[tex]AE = 20\\ DE = x/2 \\ AB = 20 + x + 14 \\ CB = 1775[/tex]

Substitute these in the above equation

[tex]20:x/2 = 20 + x + 14: 1775[/tex]

[tex]20:x/2 = x + 34: 1775[/tex]

Express as fraction

[tex]\frac{20}{x/2} = \frac{x + 34}{1775}[/tex]

[tex]\frac{40}{x} = \frac{x + 34}{1775}[/tex]

Cross multiply

[tex]x *(x + 34) = 1775 * 40[/tex]

Open bracket

[tex]x^2 + 34x = 71000[/tex]

Rewrite as:

[tex]x^2 + 34x - 71000 = 0[/tex]

Expand

[tex]x^2 + 284x -250x - 71000 = 0[/tex]

Factorize

[tex]x(x + 284) -250(x + 284)= 0[/tex]

Factor out x + 284

[tex](x - 250)(x + 284)= 0[/tex]

Split

[tex]x - 250 = 0 \ or\ x + 284= 0[/tex]

Solve for x

[tex]x = 250 \ or\ x =- 284[/tex]

x can't be negative;

So:

[tex]x = 250[/tex]

What's the value of n if 13+19= n+25

Answers

32=n +25n= 32-25 = 7

.

.

..

.

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

Answer:

[tex]13+19=n+25[/tex]

[tex]n+25=13+19[/tex]

Add 13+19= 32

[tex]n+25=32[/tex]

Now Subtract 25 from both sides

[tex]n+25-25=32-25[/tex]

[tex]n=7[/tex]

OAmalOHopeO

Find the missing side of the right triangle.

Answers

Answer:

√65

Step-by-step explanation:

you have to use the pythagoras theorem to find x which is the hypotenuse

x²=7²+4²

x²=49+16

√x²=√65

x=√65

I hope this helps

GIVING 25 POINTS AND BRAINIER IF ANSWERED!

What is one thing you would not do when finding the question in a word problem?
A. Look for a problem similar to the word problem you are trying to solve.
B. The question may not be directly stated.
C. So you can understand what the facts are in the word problem.
D. To define your strategy or game plan to solve the word problem.

Answers

The answer to your question is A

Answer:

B. The question may not be directly stated.

The chi-square test statistic is χ2 = 18.68 and the P-value is between 0.0025 and 0.005. What conclusion should the researcher make? Use α = 0.05.

Answers

We don't know what the exact p-value is, but we are told that it's as large as 0.005 which is smaller than alpha = 0.05

Since the p-value is smaller than alpha, this means we reject the null hypothesis.

The way you can remember this is "if the p-value is low, then the null must go". By "low", I mean "smaller than alpha".

Recall that the p-value is the probability of observing that specific test statistic, or larger. So the chances of chi-squared being 18.68 or larger is a probability between 0.0025 and 0.005; there's a very small chance of this happening. The p-value is based entirely on the assumption that the null is correct. But if the null is correct, then the chances of landing on this are very small. We have a contradiction that basically leads to us concluding the null must not be the case. It's not 100% guaranteed of course, but it's fairly strong evidence.

In short, the p-value being smaller than alpha = 0.05 means we reject the null.

In order to accept the null, the p-value must be 0.05 or larger.

__ (5 + 4) = 2 * 5 + 2 * 4

PLEASE EXPLAIN HOW YOU GOT THE ANSWER

Answers

Answer:

x = 2

Step-by-step explanation:

→ Simplify

x × ( 9 ) = 10 + 8

→ Further simplify

9x = 18

→ Divide both sides by 9

x = 2

pls help! I need the answer quickly! thank you!

Answers

The perimeter of a triangle is the summation of the three sides of the triangle. Base on the assumed values, the length of side BD is 2.

For [tex]\triangle ACD[/tex], the sides are: AC, AD and CD

So, the perimeter is:

[tex]P_{\triangle ACD} = AC + AD + CD[/tex]

For [tex]\triangle ABD[/tex], the sides are: AB, AD and BD

So, the perimeter is:

[tex]P_{\triangle ABD} = AB + AD + BD[/tex]

The difference in the perimeters is:

[tex]P_{\triangle ACD} - P_{\triangle ABD} =1 + \sqrt 3[/tex]

So, we have:

[tex](AC + AD + CD) - ( AB + AD + BD) =1 + \sqrt 3[/tex]

Open brackets

[tex]AC + AD + CD - AB - AD - BD =1 + \sqrt 3[/tex]

Evaluate like terms

[tex]AC + CD - AB - BD =1 + \sqrt 3[/tex]

Make BD the subject

[tex]BD = AC + CD - AB - (1 + \sqrt 3)[/tex]

The solution cannot be completed because the side lengths of [tex]\triangle ACD[/tex] and [tex]\triangle ABD[/tex] are not given; so, I will assume the following values.

[tex]AC =2; CD = 1; AB = \sqrt 3[/tex]

[tex]BD = AC + CD - AB - (1 + \sqrt 3)[/tex] becomes

[tex]BD = 2 + 1 + \sqrt 3 - (1 + \sqrt 3)[/tex]

Open bracket

[tex]BD = 2 + 1 + \sqrt 3 - 1 - \sqrt 3[/tex]

Evaluate like terms

[tex]BD = 2[/tex]

Base on the assumed values, the length of side BD is 2.

Read more about perimeters at:

https://brainly.com/question/6465134

Which proportion would you use to solve the following problem?

A map has a scale of 1 cm : 5 km. Determine how far apart two cities are if they are 4 cm apart on the map.
A.
B.
C.
D.

Answers

Answer:

20 km

Step-by-step explanation:

We can use ratios to solve

1 cm          4 cm

--------  = ------------

5 km          x km

Using cross products

1 * x = 4 * 5

x = 20

20 km

Answer:

1/5 = 4/x

Step-by-step explanation:

Each cm on the map represents 5 km. If it shows 4 cm apart of the map, you can use the proportion 1 cm : 5 km = 4 cm : x km.

Solve this inequality: 14 <-7x

Answers

Answer:

x > -2

Step-by-step explanation:

14 <-7x

or, 14/-7=-7x/-7

or, -2 < x

14feet 23feet round each measurement to the nearest ten

Answers

10ft
20ft
I hope that’s correct ☺️
Answer:

14 feet and 23

Step-by-step explanation:

It’s already rounded to the nearest tenth

how do i convert 134five to base ten

Answers

Answer:

44

Step-by-step explanation:

1×5² + 3×5¹ +4×5⁰

25+15+4

44

Y= 3x-1
2x+6=y substitution method

Answers

Answer: (7, 20)

Concept:

There are three general ways to solve systems of equations:

EliminationSubstitutionGraphing

Since the question has specific requirements, we are going to use substitution to solve the equations.

Solve:

Given equations

y = 3x - 1

2x + 6 = y

Substitute the y value since both equations has isolated [y]

2x + 6 = 3x - 1

Add 1 on both sides

2x + 6 + 1 = 3x - 1 + 1

2x + 7 = 3x

Subtract 2x on both sides

2x + 7 - 2x = 3x - 2x

[tex]\boxed{x=7}[/tex]

Find the value of y

y = 3x - 1

y = 3(7) - 1

y = 21 - 1

[tex]\boxed{y=20}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

Factor the following expressions completely. Show and check all work on your own paper.
x^2+169

Answers

Is not factorable over real numbers, but if you want to use imaginary numbers then it would be (x+13i) (x-13i)

Answer with rational numbers: Not Factorable


Answer with imaginary numbers: (x-13i)(x+13i)

I need help with this question

Answers

Answer:

7

This question is tying to introduce an idea that

eventually becomes a calculus question ....

(4^2 + 3(4)) - (0^2+3(0))

             4 - 0

28 - 0       = 7

   4

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

1. Approach

The average rate of change can simply be defined as the slope of a line that passes through any two points on a coordinate plane. In this situation, one is given a function, and one is asked to find the rate of change over an interval.

Given function: [tex]f(x)=x^2+3x[/tex]

Intervale, [tex][0, 4][/tex]

This can be done by evaluating the endpoints of the interval by substituting them into the function. Then writing the resulting the form of a point on the coordinate plane ([tex]x, y[/tex]). Finally, one can find the slope of the line that passes through the points by using the following slope formula,

[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

Where ([tex]x_1,y_1[/tex]) and ([tex]x_2,y_2[/tex]) are coordinate points.

2. Find the points

With the function (f(x)), substitute the end points of the itnerval ( [0, 4] ) into the function to generate coordinate points,

[tex]f(x)=x^2+3x[/tex]

[ 0, 4 ]

[tex]f(0)=(0)^2+3(0)\\=0 + 0\\ =0[/tex]

Point: (0, 0)

[tex]f(4)=(4)^2+3(4)\\= 16 + 12\\ = 28[/tex]

Point: (4, 28)

3. Find the average rate of change,

Now substitute the points the formula to find the slope, then simplify to evaluate

[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

(0, 0), (4, 28)

Substitute,

[tex]\frac{y_2-y_1}{x_2-x_1}\\\\=\frac{28-0}{4-0}\\\\=\frac{28}{4}\\\\= 7[/tex]

The average rate of change is 7.

What are the common factors of 24 and 60

Answers

2 and 3 are the common factor of 24 and 60

I need you guy’s help answer thanks so much

Answers

Answer:

D

Step-by-step explanation:

inverse just means opposite so if its shown dividing it first then adding, then the inverse is multiplying then subtracting

how many degrees are there in the angle made by the heart hand and the minute hand of a clock when it is 9 o'clock​

Answers

both angles are 90 degrees

9. Find the value of the trigonometric ratio tan C​

Answers

Hi there!

[tex]\large\boxed{tanC = 40/9}[/tex]

tan = O / A, or the opposite side over the adjacent side.

From the diagram, we can see that the opposite side = 40 and the adjacent side = 9, so:

tan C = 40 / 9

Answer:

tan C = 40/9

Step-by-step explanation:

According to SOH - CAH - TOA, tan = opposite over adjacent.

In the picture, the opposite of tan C is 40 and the adjacent is 9.

So, tan C = 40/9

P.S. - Answer above is also correct.

Hi. I need help with part b thank you so much if you can do so

Answers

9514 1404 393

Answer:

  Yes, that distance is the hypotenuse of a right triangle whose sides are known

Step-by-step explanation:

The diagram seems to show the path of the ball as being two segments that are at right angles to each other. Then the direct-line distance to the hole from the tee is the hypotenuse (part A) of the triangle.

Since the leg lengths are known, the Pythagorean theorem can be used (part B) to find the length of the hypotenuse. (The answer to Part B is also the answer to Part C.)

I need help ASAP thank you

Answers

Answer:

√9 × √6

√54

√27 × √2

Step-by-step explanation:

We can obtain the answer to the question given above as illustrated below:

3√6

Recall

a√b = √(a×a×b)

Thus,

3√6 = √(3×3×6)

3√6 = √(9 × 6)

Recall

√(a × b) = √a × √b

√(9 × 6) = √9 × √6

Therefore,

3√6 = √9 × √6

Recall

√9 × √6 = √(9 × 6)

√9 × √6 = √54

Thus,

3√6 = √54

Recall

√54 = √(27 × 2)

√54 = √27 × √2

Therefore,

3√6 = √27 × √2

Therefore,

3√6 = √9 × √6 = √54 = √27 × √2

A physician orders Diflucan oral suspension 200 mg now followed by 100 mg daily for a total of two weeks. How many 35 mL bottles of Diflucan 10 mg/ml suspension are needed to fill this prescription?

Answers

Answer:

Step-by-step explanation:

Total amount = 200 mg + (13 days)×(180 mg)/day = 2620 mg

One 35 mL bottle contains (35 mL)×(10 mg)/mL) = 350 mg of medication.

(2620 mg)×(1 bottle)/(350 mg) ≈ 7.5 bottles

8 bottles are needed.

find the surface area of the prism HURRY HURRY

Answers

Answer:

should be 192

Step-by-step explanation:

rewrite 7/10 and negative 2/5

Answers

0.7 and -0.4 is you wanted them as decimals

simplify the following without using calculator

√50 + √98​

Answers

Answer:

The exact answer is 12*√2, if you need approximately answer it is 12*1.4= 16.8

Step-by-step explanation:

√50 + √98​ ​= √(25*2)+√(49*2)= √25√2+√49*√2= 5√2+7*√2=12*√2

Other Questions
Using the map, what fact canbe made about the relocationof Japanese-American duringWorld War II?A. There were multiple Relocation Centersin California.B. There were multiple Relocation Centersin Montana.C. There were multiple Relocation Centersin Oregon. If / is a midsegment of /, find x.A.2B.3C.6D.9Please select the best answer from the choices providedABCD Find the measure of the arc What is the slope and y-intercept of the following equation: = 23 1(show work pls) please help me with my question due tomorrow morning, Click to review the online content. Then answer the question(s) below, using complete sentences. ScrollOnline Content: Site 1Describe the importance of the clay sculpture when creating bronze sculptures. (Site 1) I had block the instructions but basically it said State what additional information is required in order to know that the triangles in the image below are congruent for the reason given. What is the value of x?Enter your answer in the box.x = in. 3. How will you prepare and negotiate a contract? An American worker is hired by a German consulting firm operating in New York. They pay him $50,000 in wages. The new worker's contribution is to bring a new client to the firm that buys consulting services for $70,000 . Assume no other new cost was involved in this other than the wage. The client is a Mexican firm located in Mexico City. Which of the following is correcta. National income increases by $50,000 and factor payments to abroad increase by $20,000, so US GDP increases by $70,000 b. Consumption increases by $70,000 and imports increase by $70,000,50 US GDP remains unchanged c. Consumption increases by $50,000 and exports increase by $20,000, so US GDP increases by $70,000 d. National income increases by $50,000 and factor payments from abroad increase by $50,000, so US GDP remains unchanged What is the volume of this figure? Matching Items Reported to Cash Flow Statement Categories (Indirect Method).Adidas AG is a global company that designs and markets sports and fitness products, including footwear, apparel, and accessories. Some of the items included in its recent annual consolidated statement of cash flows presented using the indirect method are listed here. Indicate whether each item is disclosed in the Operating Activities, Investing Activities, or Financing Activities section of the statement or use Not Applicable if the item does not appear on the statement. (Note: This is the exact wording used on the actual statement).1. Dividends paid. 2. Repayments of short-term borrowings. 3. Depreciation and amortization. 4. Proceeds from reissuance of treasury shares to employees. 5. [Change in] Accounts payable and other liabilities. 6. Cash collections from customers. 7. Purchase of investments. 8. Net income. 9. Purchase of property, plant, and equipment. 10. Increase in receivables and other assets. Alternative Financing PlansOwen Co. is considering the following alternative financing plans: Plan 1 Plan 2Issue 7% bonds (at face value) $5,000,000 $3,400,000 Issue preferred $1 stock, $20 par 3,600,000 Issue common stock, $25 par 5,000,000 3,000,000 Income tax is estimated at 40% of income.Determine the earnings per share of common stock, assuming income before bond interest and income tax is $750,000.Enter answers in dollars and cents, rounding to the nearest whole cent.Plan 1 $_____________________ Earnings per share on common stockPlan 2 $_______________________ Earnings per share on common stock Find the mean of 2,2,2,2 and 2 Find the greatest number such that; x360y is divisible by 24WILL GIVE BRAINIEST, NEED ANSWER ASAP Bond X is a premium bond making semiannual payments. The bond pays a coupon rate of 6.8 percent, has a YTM of 6.2 percent, and has 13 years to maturity. Bond Y is a discount bond making semiannual payments. This bond pays a coupon rate of 6.2 percent, has a YTM of 6.8 percent, and also has 13 years to maturity. The bonds have a par value of $1,000. What is the price of each bond today Our teacher is the tallest of all A. positive B. comparative C. super ty new poster is larger than her poster. A. positive B.comparative C.superlative A flight leaves the airport at 22:00 hours. It is an 11 hours and 45 minutes flight. There is a 2-hour time difference. What time will they arrive at their destination, assuming the time difference is 2 hours ahead Fast-forwarding to modern times, the heyday of the human-powered flight is far from over. Lucrative prizes still abound forrotor-driven craft, whilst experimental versions of helicopters and ornithopters (flying machines with flapping, bird-like wings) areboth on the drawing board and leaping off it with great abandon. The dream of human-powered flight has been an official reality nowfor more than 50 years, but the limits of their ingenuity are boundless - especially when inventors and engineers are spurred on byprizes as large as the $250,000 on offer from the American Helicopter Society's Igor Sikorsky Prize Fund. And who knows, perhapsone day his commute to work will take place not on a bicycle but on a bicycle-powered craft. Does your office have a landing pad onthe roof or a runway nearby? The day when she does might just be closer than they think! i really need help... i skipped my lessons and i will mark brainliest and im giving 50 pts for answers.