Find the solution of the system of equations.

First equation,

- 2x - 5y = -15

Second equation,

-9x + 15y = -30


Will mark brainliest

Answers

Answer 1

Answer:

the answer to your equation is (5,1) in point form or x=5,y=1 in equation form.

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation. hope this helps. :)


Related Questions

Select the option that does NOT mean VERTICAL.

Of or relating to vertigo, often experiencing dizziness

At right angles to the
horizontal plane

In the up and down direction

Rising straight upward


Answers

Answer:

Of or relating to vertigo, often experiencing dizziness

Explanation:

Verticle describes something that rises straight up from a horizontal line or plane. For more information take a look at the picture below.

Have a beautiful day! v(⌒o⌒)v♪

something 8 guess Im just saying stuff haahaa

The Newtown Telephone Company advertises that if you use their​ 10-10 service, you will always pay only 9c per​ minute, no matter where you call within the country. Its major​ rival, Tryus Telephone​ Company, charges only 3c per​ minute, but you must pay a 36 c ​"connection fee" per call.


​ Create a cost equation for each telephone company where y is the total cost for each phone call​ (in cents), and x is the number of minutes the phone call lasts. Write a system of equations.

Answers

Answer:

y = 9x cents

y = (36 + 3x) cents

Step-by-step explanation:

Given that:

Newtown telephone company :

Fee per minute = 9c

Tyrus company :

Fee per minute = 3c

Connection fee = 36c

Cost equation :

y = total cost for each phone call:

x = minutes phone call last ;

Newton Company :

y = (fee per minute * minute phone call last)

y = 9 * x

y = 9x cents

Tyrus Company:

y = (connection fee + (fee per minute * minute phone call last))

y = (36 + (3 * x))

y = (36 + 3x) cents

The amount a basketball coach spends at a sporting goods store depends on the number of basketballs the coach buys. The situation is represented by the function rule a=16b.

A.) Make a table of values and graph the function rule. Is the graph continuous or discrete? Explain.

B.) Suppose the coach spent $128 before tax. How many basketballs did she buy?

Answers

Answer: 0,16,32,48,64

Step-by-step explanation: the equation 16b means you will multiple 16 by whatever is in the b box. For the first b is equal to 0 so 16x0 = 0, the second b is equal to 1 so 16x1 = 16

The discrete graph for the function rule is plotted and the coach will buy 8 basketballs for $128.

What is Equation Modelling?

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is the amount which a basketball coach spends at a sporting goods store and it depends on the number of basketballs the coach buys. The situation is represented by the function rule a = 16b.

The given equation is -

a = 16b

where -

[a] represents the amount spend by the basketball coach.

[b] represents the number of basketballs buyed.

PART - A

The table is given as follows -

[b]                 [a]

0                    0

1                    16

2                   32

3                   48

4                   64

The graph of the representing the function rule - a = 16b is attached with the answer. The graph is discrete as number of basketballs cannot exist in fractions. This means the possible values of [b] will be whole numbers only.

PART - B

If coach spent $128, then the number of footballs bought will be -

b = 128/16

b = 8

Number of footballs bought were 8.

Therefore, the discrete graph for the function rule is plotted and the coach will buy 8 basketballs for $128.

To solve more questions on equation modelling, visit the link below-

https://brainly.com/question/13516618

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How do you graph y = x + 1 and y = -x + 21

Answers

Answer:

whatever x is, add one and that is y.

-x? add 21 and that is also y.

do not change x, and plot the point.

Find the slope of the line. Use the "/" to make a fraction if needed. Reduce your answer.

Answers

Answer:

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

Step-by-step explanation:

This line goes down 1 unit and right 2 units.

A translation of (x - 4, y + 5) means

Answers

Answer:

it means left 4 and up 5

Step-by-step explanation:

I took the test

If m<1 = 38 then m<4 =

Answers

Answer:

If m<1 = 38 then m<4 = 38

Step-by-step explanation:

Both of the angles equal 38 degrees. This is true because the angles are vertical, vertical angles are angles opposite each other where two lines cross. Vertical angles are also always congruent, therefore the m<4=38.

Simplifying Expressions
3. Which of the following expressions is the simplified form of the expression below?
(x^3+2x^2+5) - (8x^2 - 4x + 6)
A. 10x -11
B. 9x^3-- 2x^2 +11
C. 7x^2 - 2x^2 -1
D. x^3-6x^2+ 4x - 1

Answers

Answer:

As

[tex]\left(x^3+2x^2+5\right)-\left(8x^2-4x+6\right)=x^3-6x^2+4x-1[/tex]

Therefore, option D is the correct answer is.

Step-by-step explanation:

Given the expression

[tex]\left(x^3+2x^2+5\right)\:-\:\left(8x^2\:-\:4x\:+\:6\right)[/tex]

solving to simplify the expression

[tex]\left(x^3+2x^2+5\right)\:-\:\left(8x^2\:-\:4x\:+\:6\right)[/tex]

[tex]=x^3+2x^2+5-\left(8x^2-4x+6\right)[/tex]        ∵  [tex]\mathrm{Remove\:parentheses}:\quad \left(a\right)=a[/tex]

[tex]=x^3+2x^2+5-\left(8x^2-4x+6\right)[/tex]

[tex]=x^3+2x^2+5-8x^2+4x-6[/tex]

Group like terms

[tex]=x^3+2x^2-8x^2+4x+5-6[/tex]

[tex]\mathrm{Add\:similar\:elements:}\:2x^2-8x^2=-6x^2[/tex]

[tex]=x^3-6x^2+4x+5-6[/tex]

[tex]\mathrm{Add/Subtract\:the\:numbers:}\:5-6=-1[/tex]

[tex]=x^3-6x^2+4x-1[/tex]

Therefore, the simplified form of the expression is

[tex]\left(x^3+2x^2+5\right)-\left(8x^2-4x+6\right)=x^3-6x^2+4x-1[/tex]

Therefore, option D is the correct answer is.

someone help 6th grade math i will give brainliest

Answers

Answer:

240 should be the answer

Step-by-step explanation:

80% of 300 is 240

Answer:

The correct answer would be 240. If you start at 10 percent which already gives you 30 then continue to go up. Move on by 10 percent until you get to 80 percent which is the amount of televisions that are high definition. Once you count by 10 percent with 30 everyitme you will lead to the answer of 240.

Step-by-step explanation:

Just count by 30’s eight times and you get your answer which I supplied above. I hope this helps.

-Vizion

Which values from the given replacement set make up the solution set of the inequality?

m+7<18 ; {8, 9, 10, 11}

{9, 10, 11}

{8, 9, 10}

{8, 9}

{10, 11}

Answers

Answer:

B: 8,9,10

Step-by-step explanation:

What is 7x1??????????????????????????

Answers

Answer:

7

Step-by-step explanation:

Please help me out with this

Answers

Answer: x=42

Step-by-step explanation:2x+2x+12=4x+12=180 so 180-12=4x

Write the equation of the line passing through the point (-2, 2) that is parallel to the line y = 2x + 3

Answers

Hi there! :)

[tex]\large\boxed{y = 2x + 6}[/tex]

A line that is parallel to y = 2x + 3 must have the same slope of 2. Therefore:

We can use the given point as well as the slope-intercept formula y = mx + b to solve.

Plug in the x-coordinate for "x" and y-coordinate of the point into "y":

2 = 2(-2) + b

2 = -4 + b

6 = b

Rewrite the equation:

y = 2x + 6

Can you help me please (get brainliest)

Answers

9514 1404 393

Answer:

  4/25

Step-by-step explanation:

Put the numbers where the letters are and do the arithmetic.

  [tex]\left(2\cdot\dfrac{-1}{2}\cdot\dfrac{2}{5}\right)^2=\left(\dfrac{-2}{5}\right)^2=\dfrac{(-2)^2}{5^2}=\boxed{\dfrac{4}{25}}[/tex]

solve for u and simplify the fraction 2/5u=4 ​

Answers

Answer:

u=10 the fraction simplified once you plug in u would be 4

The cost of filling up Jason's car is directly proportional to the number of gallons purchased. It if costs Jason $32.40 to purchase 15 gallons of gas, find the cost of purchasing 20 gallons of gas.

Answers

Answer:

$43.2

Step-by-step explanation:

32.4÷15=2.16

2.16×20=43.2

The cost of purchasing 20 gallons of gas will be $43.2.

What is Proportional?

Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

Given that;

The costs Jason $32.40 to purchase 15 gallons of gas.

Now,

Let the cost of purchasing 20 gallons of gas = x

Since, The costs Jason $32.40 to purchase 15 gallons of gas.

So, By definition of proportion we get;

⇒ $32.40/15 = x / 20

⇒ 32.40 × 20 / 15 = x

⇒ x = $43.2

Thus, The cost of purchasing 20 gallons of gas = $43.2

Learn more about the proportion visit:

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Write an algebraic expression that you can use to determine the total cost of buying a watermelon that weighs w pounds and some tomatoes that weigh t pounds. Watermelons are on sale for $0.68 per lb and tomatoes are $3.25 per lb. (Do not enter dollar signs or spaces in your expression.)

Answers

Answer:

C = 0.68w + 3.25t

C is total cost

Step-by-step explanation:

The points in the table lie on a line. Find the slope of the line.
Х
1
3
5
7
y
2
10
18
26
The slope of the linelis
21

Answers

The slope of the line is 4, comment if you need an explaination and I can help u
I hope this helps!!!

If the given points in the table lie on a line, then the slope of a line is, 4

What is slope?

Slope is a ratio of change in y-coordinate w.r.t. change in x-coordinate. The net change in y coordinate is written as, Δy and the net change in x coordinate is written as, Δx.

So formula for the slope is,

m = change in y coordinate/change in x coordinate = Δy/Δx

Given that,

Coordinates of a point through which line is passing,

X:   1    3    5    7

Y:   2   10  18  26

The slope of a line  =  ?

The slope of a line can be calculated by finding the rise (difference in the y-values) over the run (difference in the x-values) between two points on the line.

Now, Using the first and last points in the table:

First point- (1, 2)

Second Point- (7, 26)

Slope =  (y₂ - y₁)/(x₂ - x₁)

Slope = (26 - 2) / (7 - 1)

          = 24 / 6

          = 4

The slope of the line is 4.

To know more about slope check:

https://brainly.com/question/19131126

SPJ5

Over 12 months, the value of Mrs. Marino's stocks dropped
a total of $36, or -$36. What integer value represents the
average monthly change in the value of her stocks ??

Answers

The average monthly change is -36 every 12 months i think ‍♀️

Simplify the expression.
: 8 - 2(3)

Answers

Answer: the answer is just 2

PLEASE HELP!!!! What has to be true if you want to solve a quadratic?

Answers

Answer:

The quadratic formula helps you solve quadratic equations, and is probably one of the top five formulas in math. Then the formula will help you find the roots of a quadratic equation, i.e. the values of x where this equation is solved.

Sorry I didn’t understand your question

List the factors that are divisible by 33,424,380. 2 3 4 5 8 9 10

Answers

Answer:

The factors are 2,3,4,5,8,10

Step-by-step explanation:

Here, we want to list out the factors that can divide 33, 424 and 380

The factors include;

2, 3 , 4 , 5, 8, 10

Kindly note that each of these factors can divide at least one of the listed numbers

-49b + 35

What is the answer simplified, without actually solving the problem?

Answers

Answer:

-24b

Step-by-step explanation:

I think (Please give me Brainliest!)


Krista has a garden that is 5 yards by
23 yards and wants to cover it with
compost. The compost is sold in bags
that cover 5, 15, or 30 square yards.
Which size bag should Krista buy?

A 5 square yards
B 15 square yards
C 30 square yards

Answers

Answer: 30 square yards: C

The expression 13b−13 factored is

Answers

Answer:

13(b - 1)

I hope it is. tell me if I'm wrong

13 (b—1) that as the Answrer girl or boy you have to do grouping

A small bookstore is downsizing and has lost employees at a steady rate. The company started with 30 employees but lost 3 employees each month for the past 4 months. Identify key features of the graph of this function.

Answers

Answer:

Join Zoom Meeting  

Meeting ID: 385 546 8984

Passcode: icecream4

Step-by-step explanation:

The length of a tarpaulin is 3ft. more than thrice its width and its area is 126ft². What is the length of the tarpaulin?​

Answers

Answer:

Length = 22 ft

Width = 6 ft

Step-by-step explanation:

Let the width of the tarpaulin be x meters.

Therefore, length = 3x + 3

Area of tarpaulin = 126 ft²

[tex]x(3x + 3) = 126 \\ \\ 3x(x + 1) = 126 \\ \\ {x}^{2} + x = \frac{126}{3} \\ \\ {x}^{2} + x = 42 \\ \\ {x}^{2} + x - 42 = 0 \\ \\ {x}^{2} + 7x - 6x - 42 = 0 \\ \\ x(x + 7) - 6( {x + 7)} = 0 \\ \\ (x + 7)(x - 6) = 0 \\ \\ x + 7 = 0 \: \: or \: \: x - 6 = 0 \\ \\ x = - 7 \: \: or \: \: x = 6 \\ \\ \because \: x \: is \: side \: length \\ \therefore \: it \: can \: not \: be \: negative \\ \implies \: x \notin - 7 \\ \\ \implies \: x = 6 \\ \\ 3x + 3 = 3 \times 6 + 3 \\ \\ 3x + 3 = 18 + 3 \\ \\ 3x + 3 = 21 \\ \\ length \: of \:the \: tarpaulin \: = 21 \: ft \\ \\ width \: of \: the\: tarpaulin \: = 6 \: ft \\ [/tex]

Help pls its just math :(

Ik it sucks I hate math too, pls help tho

Answers

Answer: x = -1

Step-by-step explanation: Insert all the numbers into x, and when you insert -1 to x, you get 40.

Answer:

x = - 1

Step-by-step explanation:

Given

- 4(3x - 7) = 40 ( divide both sides by - 4 )

3x - 7 = - 10 ( add 7 to both sides )

3x = - 3 ( divide both sides by 3 )

x = - 1

Tyler has a bag that contains orange chews, cherry chews, and peach chews. He performs an experiment. Tyler randomly removes a chew from the bag, records the result, and returns the chew to the bag. Tyler performs the experiment 38 times. The results are shown below:
A orange chew was selected 28 times.
A cherry chew was selected 7 times.
A peach chew was selected 3 times.

Based on these results, express the probability that the next chew Tyler removes from the bag will be peach chew as a percent to the nearest whole number.

Answers

Answer:

8%

Step-by-step explanation:

Mathematically, the probability of an event can be obtained by dividing the expected number in which event will turn up divided by the total number we have in the sample space

From the question, the total number of times in which the experiment is performed is 38 times

The number of times we have the peach chew selected is 3 times

So the probability that the next removal will be a peach chew will be;

3/38 = 0.079

This as a percent is 7.9%

To the nearest whole number, this figure is 8%

Linda will spend more than $26 on gifts. So far, she has spent $12. What are The possible additional amounts she will spend?

Answers

26 - 12 = $14
She will need to spend more than $14 now

Answer:

Step-by-step explanation:

14

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