7x+4y=-8
-8x-5y=13
solve the following system of equations

Answers

Answer 1

Answer:

x=30.67. y=-51.67

Step-by-step explanation:

this is the answer


Related Questions

Lily works 14 hours and earns $329. Aaron's hourly rate is 3/5 of Lily's. Aaron earns $310.20. What is Aaron's hourly rate? How many hours does Aaron work?

Pls help!

Answers

lily’s hourly rate = $329/14 = $23.5/hr
aaron’s hourly rate = $23.5 x 3/5 = $14.1/hr
no. of hours aaron works = $310.20/$14.10 = 22 hours

The time of work for Aaron is 22 hours and Aaron's hourly rate is $14.1.

What is multiplication?

One of the four fundamental mathematical operations, along with addition, subtraction, and division, is multiplication. Multiply in mathematics refers to the continual addition of sets of identical sizes.

Given:

Lily works 14 hours and earns $329, Aaron's hourly rate is 3/5 of Lily's, Aaron earns $310.20,

Calculate Aaron's hourly rate as shown below,

Aaron's hourly rate = 3 / 5 of Lily's

Aaron's hourly rate = 3 / 5 × 329 / 14

Aaron's hourly rate = 987 / 70

Aaron's hourly rate = 14.1

Thus, Aaron's hourly rate is $14.1.

The time of work for Aaron = 310.2 / 14.1

The time of work for Aaron = 22 hours

To know more about multiplication:

https://brainly.com/question/1135170

#SPJ2

Choose the multiplication problem that matches this model:

Drew studied for of an hour for 5 days in a row. How many hours did he study?
Drew studied for of an hour for 5 days in a row. How many hours did he study?
Drew studied for of an hour for 4 days in a row. How many hours did he study?
Drew studied for 8 hours for 5 days in a row. How many hours did he study? i need help

Answers

Answer:

Drew studied for an hour for 4 days in a row. How many hours did he study? Drew studies for 2.5 hours.

Step-by-step explanation:

The model shows that drew studied 2/8 every day and 2/8 is equal to 1/4 cut all five days that he studied in half and you get 2.5.

Describe the Domain of the function f(x) = - 2.5x + 50

Answers

Answer: all real numbers

Step-by-step explanation:

you can plug in any number for x and get back a corresponding y value. So the domain is all real numbers.

The solution is 13. True or false?

x - 5 = 9

Answers

Answer: false. 13 - 5 is not 9

Step-by-step explanation:

Answer: False

Step-by-step explanation:

Claudius took out an unsubsidized Stafford loan at the beginning of his six-year college career. The loan had a
principal of $4,850, an interest rate of 6.5% compounded monthly, and a duration of ten years. If Claudius started
paying off the loan when he graduated, what is his monthly payment? Round all dollar values to the nearest cent.
a. $71.37
b. $81.25
C. $55.07
d. $76.55
Please select the best answer from the choices provided
СА
B
Oo oo
00
D

Answers

Answer:

B. 81.25

Step-by-step explanation:

i need help on this question

Answers

Answer:

  8 feet

Step-by-step explanation:

Filling the given numbers into the hint, we find ...

  C = 2πr

  50.24 = 2(3.14)r

  r = 50.24/6.28 = 8 . . . . . . . divide by the coefficient of r

The radius is 8 feet.

29,23,19,17,13,?

What is the missing pattern

Answers

Answer:

The answer is 11

Step-by-step explanation:

Given;29, 23, 19, 17, 13,..,To Find;The missing number of pattern

Here, we know that 29, 23, 19, 17, 13 are the prime numbers.

So, The missing value is 11

Thus, The missing number of pattern is 11

-TheUnknownScientist 72

The next element in sequence is 13, so completed sequence would look like 29,23,19,17,13,11

How to find the missing element in a sequence?

For that we need to figure out how the sequence's elements are getting generated. Then we can apply the same formula to find the next values of the sequence.

The sequence given in the problem is: 29,23,19,17,13,?

We can see that the numbers listed are prime numbers, starting from 29, and going decreasing.

The number that will come in place of "?" is going to be such that it is prime number and come exactly before 13. Before 13, there are primes 2,3,5,7, 11

11 is closest to 13,

Thus, the next element in sequence is 13, so completed sequence would look like 29,23,19,17,13,11

Learn more about sequence and patterns here:

https://brainly.com/question/9737262

Tonya is at least 14 years old. Which inequality best represents the statement? Let x = Tonya's age.A) x < 14B) x > 14C) x = 14D) x > 14

Answers

Answer: x > 14

Step-by-step explanation: At least means that the minimum is 14. This means x, her age would have to be greater than 14.

What is the reciprocal of 4 and 4/7

Answers

Answer:

the reciprocal of 4 I'd 1/4 and 4/7 is 7/4

Answer:

[tex]\frac{7}{32}[/tex]

Step-by-step explanation:

The reciprocal of a number n is [tex]\frac{1}{n}[/tex]

4 [tex]\frac{4}{7}[/tex] ( change to an improper fraction )

= [tex]\frac{32}{7}[/tex]

Then reciprocal is [tex]\frac{1}{\frac{32}{7} }[/tex] = [tex]\frac{7}{32}[/tex]

Question on Pic Thx! 20 PTS

Answers

The greatest number of people visiting was 345, the greatest decrease is from Thursday to Friday 345-315=30 a difference of 30 people

Question 13 of 23
In a free-market system, producers are most strongly driven by which of the
following?
O A. Coercion.
O B. Utility satisfaction.
O C. The profit motive.
O D. Government planning.
Answer?

Answers

Answer:  C. The profit motive.

Explanation:

Businesses that see a profit opportunity will move into that space to try to earn money. Those that don't earn a profit will unfortunately go out of business, or try to seek business ventures elsewhere.

Quadrilateral STUV is a rhombus. What is
m/RVU?

Answers

Answer:

m∠RVU = 60°

Step-by-step explanation:

Properties of the rhombus:

diagonals are perpendicularopposite angles are equaldiagonals are angle bisectors

Given:

m∠TUR = 30°

To find:

m∠RVU

According to the properties described above, we have:

TUR ≅ VUR∠RVU and ∠VUR are complementary

It gives us:

m∠RVU + m∠VUR = 90°m∠RVU + 30° = 90°m∠RVU = 60°
STUV is a RhombusWe know that in a Rhombus diagonals bisect eachother at 90°.Diagonals are aslo bisectors of angles

So

[tex]\\ \tt\hookrightarrow m<RVU=m<RUT=30°[/tex]

2022-01-27
Suppose [tex]a_{n}[/tex] as the sum of the numbers in which the quotient and the remainder are equal when divided by [tex]n.[/tex] For example, [tex]a_{5}=6+12+18+24=60.[/tex] Find the least [tex]n[/tex] such that [tex]a_{n}\ \textgreater \ 500.[/tex]​

Answers

Answer:

n = 11

Step-by-step explanation:

We can observe general terms of n:

aₙ = n + 1 + 2n + 2 + 3n + 3 + ... + (n - 1)n + (n - 1)

Rewrite it as:

aₙ = (n + 1) + 2(n + 1) + 3(n + 1) + ... (n - 1)(n + 1) =       (n + 1)(1 + 2 + 3 + ... + n - 1) =       (n + 1)(1 + n - 1)(n - 1)/2 =       (n - 1)n(n + 1)/2

We need to find the least n for which aₙ > 500:

(n - 1)n(n + 1)/2 > 500 ⇒ (n - 1)n(n + 1) > 1000

If n = 10:

a₁₀ = 9*10*11 = 990 < 1000

If n = 11:

a₁₁ = 10*11*12 = 1320 > 1000

So the least n is 11

If I'm understanding the construction of this sequence correctly, we have

• a₁ = 0

(the sum is empty since there is no positive integer b such that b•1 + b = 1)

• a₂ = 3

(since 3 = 1•2 + 1)

• a₃ = 4 + 8 = 12

(since 4 = 1•3 + 1 and 8 = 2•3 + 2)

• a₄ = 5 + 10 + 15 = 30

(since 5 = 1•4 + 1, 10 = 2•4 + 2, and 15 = 3•4 + 3)

and so on.

Notice that for n ≥ 2, aₙ is simply the sum of the first n - 1 multiples of n + 1. So

[tex]\displaystyle a_n = \sum_{i = 1}^{n - 1} (n+1)i[/tex]

Recall that

[tex]\displaystyle \sum_{i=1}^n i = \frac{n(n+1)}2[/tex]

Then

[tex]\displaystyle a_n = (n+1) \sum_{i=1}^{n-1} i = (n+1) \cdot \frac{(n-1)n}2 = \frac{n(n^2-1)}2[/tex]

Solve for n such that aₙ > 500 :

n (n² - 1)/2 > 500

n (n² - 1) > 1000

n³ - n > 1000

We can solve this by inspection. Noticing that 10³ = 1000, if we replace n = 10 we get

10³ - 10 = 990 > 1000

which is false, but the difference is quite small. So we move up to n = 11 and find

11³ - 11 = 1320 > 1000

which is true, so n = 11 is the least number such that aₙ > 500.

Solve the questions below:
2(3x + 5) - 3
6 / 2(1 + 2) **/ means to divide**

Answers

Answer:

2(3x+5)-3 = 6x+7

6/2(1+2) = 9

Step-by-step explanation:

find the missing term
5:13 = 3:

Answers

Answer:

Step-by-step explanation:

Let,5:13=3:x

Now we have,

5/13=3/x

5x=13×3

x=39/5

x=7.8

Step-by-step explanation:

5/13=3/x5 x =13 × 3 x =39/5 x =7.8

i hope is good answer

How do you write y - 3 -
(x + 4) in slope intercept form?

Answers

In slope-intercept form y - 5 = 3(x - 4) is y = 3x - 7.

Answer:

y = x + 7

Step-by-step explanation:

Your original equation was:

y - 3 = (x+4)

First distribute

= (x+4)

Since there is no a value, then there is an invisible one and your result is:

y - 3 = x + 4

Then add 3 to both sides to get:

y = x +4 +3

y = x + 7


Since the slope-intercept form of a line is y = mx + b

where m is the slope and b is the intercept, then your equation is now in slope-intercept form.

Hope this helps! =D

which graph is nonlinear?

Answers

Answer:

the first is is a nonlinear

Step-by-step explanation:

the first graph is nonlinear

How do you solve this problem?

Answers

Answer:

A=π [units²].

Step-by-step explanation:

for more details see the attachments (one is the required graph, another is calculation of the required area).

52:10
Which graph shows the solution to the inequality -3x-7 <20?
-10
-5
10
-10
10
-10
10
-10
0
10

Answers

Answer:

the answer is x>-9, or the second option in your case.

A circle is centered at the point
(−2,5) and has a radius of 7 units.

Which points on the circle have an x-coordinate of 0? (Your answer should be a list of points, such as "(1,1), (2,4)".)


Which points on the circle have a y-coordinate of 2? (Your answer should be a list of points, such as "(1,1), (2,4)".)



Write an equation for the graph of this circle.

Answers

Answer:

A circle is centered at the point

(−2,5) and has a radius of 7 units.

Which points on the circle have an x-coordinate of 0? (Your answer should be a list of points, such as "(1,1), (2,4)".)

Which points on the circle have a y-coordinate of 2? (Your answer should be a list of points, such as "(1,1), (2,4)".)

Write an equation for the graph of this circle.

Answer:

See below

Step-by-step explanation:

Given:

The radius is 7 and Center is at (- 2, 5).

The equation is:

(x - h)² + (y - k)² = r² or(x + 2)² + (y - 5)² = 7² or(x + 2)² + (y - 5)² = 49

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

The points with x = 0:

(0 + 2)² + (y - 5)² = 49(y - 5)² = 49 - 4(y - 5)² = 45y - 5 = ± √45y = 5 ± √45y = 5 ± 3√5

The points are:

(0, 5 + 3√5), (0, 5 - 3√5)

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

The points with y = 2:

(x + 2)² + (2 - 5)² = 7²(x + 2)² = 49 - 9(x + 2)² = 40x + 2 = √40x = - 2 ± 2√10

The points are:

(- 2 + 2√10, 2), (- 2 - 2√10, 2)

suppose that grade point averages of undergraduate students at one university have a bell shaped distribution with a mean of 2.61 and a standard deviation of 0.45.
Using the empirical rule, what percentage of the students have grade point averages that are at least 2.16? Please do not round your answer.

Answers

84% of the students have grade point averages that are at least 2.16

Empirical rule

Empirical rule states that for a normal distribution, 68% are within one standard deviation from the mean,  95% are within two standard deviation from the mean,  99.7% are within three standard deviation from the mean.

68% = mean ± standard deviation = 2.61 ± 0.45 = (2.16, 3.06)

The percentage of the students have grade point averages that are at least 2.16 = 68% + (100% - 68%)/2 = 84%

84% of the students have grade point averages that are at least 2.16

Find out more on Empirical rule at: https://brainly.com/question/10093236

On a unit circle, what is cos Θ for coordinates [tex](\frac{\sqrt{2} }{2} , \frac{\sqrt{2} }{2})[/tex]?

A) 0

B) 1

C) [tex]\frac{\sqrt{2} }{2}[/tex]

D) [tex]\sqrt{2}[/tex]

Answers

Answer:  C

Step-by-step explanation:

Answer:

c) square root of 2/2

Step-by-step explanation:

CosΘ = x, so whatever your x coordinate is

(SinΘ = y, just so you know)

What is the total weight of 6 bags of groceries

Answers

Answer:

7.5KG

Step-by-step explanation:

2/3(x-7)= -2
Please help me

Answers

4 is the answer disrubitive property

Camille had 30 dollars to spend on 3 gifts.She spent 9 1/4 dollars on gift A and 6 4/5 dollars on gift B .How much money did she have left for gift C

Answers

Answer:

Well Bree if Camille had 30 dollars to spend on 3 gifts you will have to figure out how much each gift was and then you will subtract the rest off that.

Simplify:
(7ty) (31)

Answers

The answer to this question is option D, the last option!

Write a ratio for the following situation.

Dominique made three times as many goals as Lucas during soccer practice today.

Answers

Answer:

i dont know

Step-by-step explanation: use a bar graph or something

please help explanation if possible

Answers

whenever we run a perpendicular line to a base from a right-angle in a right-triangle, like in this case, we end up with 3 similar triangles, a Small one, a Medium and a containing Large one, therefore Check the picture below.

If root of 784 equals 28,then find the value of root 7.84+0 784.​

Answers

Answer:

It's [2,936664775] or [7 root of (110) / 2]

Find the equation of the exponential function represented by the table below:

Answers

Answer:

[tex]y=0.1(4)^x[/tex]

Step-by-step explanation:

Exponential functions are represented by the formula [tex]y=a(b)^x[/tex], where a is the initial value, and b is the multiplier.

Here, we can see that when x = 0, or our initial value, y = 0.1.

Thus, a = 0.1.

Since b is the multiplier, or like the slope, we can do 0.4/0.1 and get 4 for our multiplier.

Now plug everything into the formula [tex]y=a(b)^x\\y=0.1(4)^x[/tex]

Other Questions
Barbara saw her favorite band, Royal Gems, perform on Friday night. She paid $77.50 for a ticket to the show. She also had to pay for the 4 hours her car was parked in the parking garage. Barbara spent a total of $89.50.Which equation can you use to find x, how much it cost for each hour Barbara's car was parked in the garage? A hill that has a 15.5% grade is one that rises 15.5 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal In a hydrogen atom, an electron with a charge of (-)1.6E-19 C orbits a proton with the same but positive charge at a distance 61 picometers away (that's trillionths of a meter or 10-12 m). What electric force F, in N, binds the two particles together The country of ____________________ means Black Mountain. In mcculloch v. Maryland, the supreme court invoked which provisions of the constitution?. Write a descriptive paragraph about a classmateHow do I write about a classmate that includes his identities, his likes, the background, the goal, and the subjects he studies? I hope for help. I do not know English PLEASE HELP IM GIVING 50 POINTS At Dapper Dave's annual end-of-season sale, every necktie in the shop gets marked down. Dillon purchased 6 neckties during the sale. Each necktie cost $5 less than its full price. He paid a total of $162. What is the cost of each necktie at full price?. A numerical measure from a sample, such as a sample mean, is known as _____. someone please help me out with this The strength of an acid depends ona. the number of double bondsb. the number of protons releasedc. the number of electrons gainedd. all of the above Which of these sentences is the most formal in style?A: Alice is noticeably confused by the White Queens assertion that events in the Looking-Glass land may happen in reverse.B: Alice has serious doubts when the White Queen explains to her that stuff can happen in a backward way in the Looking-Glass land.C: It seems to me that Alice is kind of confused when the White Queen tells her that a person can be punished for a later crime.D: Many readers will probably agree with Alice when she says that the White Queens ideas are totally wacky. Simplify (3x 5) (5x 1). 8x 6 8x 4 8x 4 2x 4. I need help really fast! write the sentence as an equation the product of 288 and q, minus 185 is 236 times q , decreased by 245 A particle is acted upon by two forces F1 and F2 given by F1 =(-4i + 7j) N and F2 = (2ai - aj) N, where a is a positive constant. The resultant of F1 and F2 is R.Given that R is parallel to 3i + j find the value of a. (4 marks) Understanding text structure can help readers determine the main idea of a text.True or false? Marta se levanta y se viste. Alfonso en el gimnasio. Carla el pelo. Por la maana me levanto, me ducho y me visto. Cuando salgo de la ducha, me pongo. What do local taxes fund? Select all that apply.[]public schools[]public libraries[]Social Security[]U.S. military[]city parks pls help me i need this to get a 100 What is your opinion of Justice Taney's view of the framers' original intent?