Which system of linear equations has exactly one solution?


2y = 10x + 4

y = 5x - 2


y = 2x - 3

2y = x - 12


y = 8x + 3

y = 8x + 7


15y = 30x + 90

y = 2x + 6

Answers

Answer 1

Answer:

y = 2x - 3

2y = x - 12

Step-by-step explanation:


Related Questions

Wow! There are 51 rabbits. Round 51 to the nearest 10,

Answers

Answer:

it 50

Step-by-step explanation:

Answer:

The answer (I think) is 50.

Step-by-step explanation:

I'm a little cautious, just cause because this question seems so easy.‍♀️

51 is closest to 50, so 51 rounded to the nearest tenth is 50.

Could I be marked as Brainliest please???

The volume of the cylinder is 13,665.28 cm³ and the height is 17 cm what is the radius

Answers

Answer:

V = π²h

r = √V/πh

r = √13,665.28cm³/(3.14)(17cm)

r =√13,665.28/53.38 cm

r = √256 cm

r = 16 cm

Please help me with this Math question.
Each win is worth 3 points.
Each draw is worth 1 point.
Each lose is worth 0 points.
Is 33 correct answer?

Answers

Answer:

33 is definitely the correct answer

VERY URGENT PLEASE HELP!!!!

Rafael's gas tank is 1/2 full. After he buys 9 gallons of gas, it is 4/5 full. How many gallons can Rafael's tank hold?

Answers

Answer:

30 Gallons

Step-by-step explanation:

Ok, lets see the difference the 9 gallons of gas did to Rafael's gas tank.

1/2 --> 0.5

4/5 --> 0.8

0.8-0.5 = +0.3

The tank was made 30% more full with the gas.

Next, we can use this to find the amount of gas which would need to be used to fully fill the tank, given that it was empty.

So to make it easier, say we filled it up a third of 30% to get an easier to work with 10% of fill of the gas tank.

9 / 3 ---> 3 Gallons

Now, multiply this by 10 to get the 100%

3 * 10 = 30 Gallons

All done!

you’re answers 30 gallons
hope this helps

The total cost of $4 sharpeners and $7 folders is $30.05. If the cost of a sharpener is $a, and a folder is $2.80 more expensive, find $a. Give your answer to two decimal places.

Answers

9514 1404 393

Answer:

  a = $0.95

Step-by-step explanation:

The cost of a sharpener is 'a', and the cost of a folder is $2.80 more, so is a+2.80. The total cost of 4 sharpeners and 7 folders is ...

  4a +7(a+2.80) = 30.05

  11a = 10.45 . . . . . . . . . . . subtract 19.60

  a = 0.95 . . . . . . . . . . . divide by 11

The cost of a sharpener is a = $0.95.

I really need help , someone please help :’( ... ill also make you brainlist.

Answers

Answer:

Step-by-step explanation:A)

13 miles in feet = 68640 feet

we now need to get the number of cars, we use division to get groups

68640 / 15 = 4576.

we now see there are 4576 cars in the traffic jam.

B)

Less, they are longer cars so the divosor would no longer be 15, it would be a higher number. 4576 cars would  not be able to fit in a 13 mile stretch if those cars were any longer.

15. Find the value of x and y rounded to the nearest tenth.
X
34
45°
30°
y

Answers

Answer:

x = 24.0

y = 46.4

Step-by-step explanation:

Let opposite side = z

Using trigonometry :

Sin 30 = z / 34

z = 0.5 * 34

z = 17

We find x :

Sin 45 = 17 / x

x * sin45 = 17

x = 17 / sin 45

x = 24.04

Let y = y1 + y2

y1 = 17 / tan45

y1 = 17

y2 = 17/tan30

y2 = 29.44

y = 17 + 29.44

y = 46.44

I'LL MARK YOU AS BRAINLIEST IF ANSWER CORRECT


a bookstore charges h dollars for a hardcover book, p dollars for a paperback book, and m dollars for a music CD. During a sale the store reduces the cost of of a book by 20% and reduced the cost of music CD by $1. Enter an equation for the total cost, t, for buying 5 hardcover books, 8 paperback books, and 6 music CDs during the sale.​

Answers

The Equation to represent the "total-cost", "t", for purchasing "5 hardcover books", 8 "paperback-books", and 6 music CDs during the sale is t = 4h + 6.4p + 6m - 1.

The cost of the hardcover-book is = $h,

The cost of the paperback-books is = $p,

The cost for one music-CD is = $m,

In the sale, the price of each book is reduced by 20%, and

The price of music-CD is reduced by $1,

So, the cost of 5 hardcover books during the sale is:

⇒ 5h - 0.2(5h) = 4h     ...because 20% = 0.2;

and the cost of 8 paperback books during the sale is:

⇒ 8p - 0.2(8p) = 6.4p,

The cost of 6 music CDs during the sale is ⇒ 6m - 1;

So, the total cost, "t", for buying 5 hardcover books, 8 paperback books, and 6 music CDs during the sale is:

⇒ t = 4h + 6.4p + 6m - 1,

Therefore, the required equation of "total-cost" is t = 4h + 6.4p + 6m - 1.

Learn more about Equation here

https://brainly.com/question/22307092

#SPJ1


Help please I’ll give extra points

Answers

Answer:

105°

Step-by-step explanation:

The sum of all the interior angles of a triangle is equal to 180°. With that I. mind, we can write

(6x + 5) + (11x - 5) + x = 180

Collecting all similar terms, we get

18x = 180 or x = 10

They, the measure of angle Q is

Angle Q = 11x - 5 = 11(10) - 5

= 105°


HELP

What is the equation of the trend line in the scatter plot ?

Answers

Answer:

its decreasing

Step-by-step explanation:

the graph will always be read from left to right.

3/8 x 2 what would the answer be to this statement

Answers

Answer:

6/16

Step-by-step explanation:

Does anyone know generic rectangles?

Answers

Answer:

here you go i guess

Step-by-step explanation:

a hamburger shop sold 360 hamburgers and a number of cheeseburgers were sold was 3 times how many were sold on Sunday?​

Answers

Answer:

1080 cheeseburgers

Step-by-step explanation:

If the number of cheeseburgers are three times as many as the hamburgers, then 3x360, which is the hamburgers = 1080

I do not know what to do with the Sunday information, so perhaps the question is not complete.

Hope this helps!

If y varies jointly as x and z and y = 24 when x = 2 and z = 1, find y when x is 12 and z is 2.

A. 288
B. 48
C. 576
D. 144​

Answers

Answer:

288

Step-by-step explanation:

y= xkz

K= y/xz

= 24/2×1

= 24/2

= 12

y= xkz

= 12×12×2

= 288

Hence the value of y is 288

The water level of a reservoir is 340 feet and that it is receding at a rate of 0.5 foot per day. In how many days will the water level be 26 feet?

THE RESERVOIR IS 340 FEET PEOPLE NOT 34. thanks.

Answers

Answer:

327 feet

Step-by-step explanation:

If $5,000 is borrowed at a simple interest rate of 4.70% p.a., calculate the interest charged for 7 months.

Answers

Answer:

Using a personal loan APR of 7.63% as an example, here's a simple breakdown of what the personal loan payment calculator can show you for a $5,000 loan and $10,000 loan.

Step-by-step explanation:

The ages of customers in a shoe store at exactly two in the afternoon are shown in the stem and leaf plot below. Customers' Ages How many customers are under the age of 40? A. 15 B. 16 C. 10 D. 3

Answers

I do not see a plot

Answer:

A

Step-by-step explanation:

y’all im struggling right now

Answers

Answer:

[tex]\frac{1}{6}[/tex]

Step-by-step explanation:

probability of getting a number greater than 4 on a die, is 2 out of 6 or [tex]\frac{2}{6} = \frac{1}{3}[/tex]

probability  of getting an A on the spinner is [tex]\frac{4}{8}=\frac{1}{2}[/tex]

probability  of getting both is [tex]\frac{1}{3} *\frac{1}{2} = \frac{1}{6}[/tex]

here are 2 gold coins and 5 silver coins in Victor's coin collection. What is the ratio of the
number of silver coins to the number of gold coins?

Answers

Answer:

5:2

Step-by-step explanation:

Since we know both the number of silver and gold coins, we can put it in ratio form. Pay attention to the order; since it’s asking for silver to gold coins, the ratio would be silver:gold. We can substitute the 5 and 2 for the gold and sliver values, so we get 5:2. This answer cannot be simplified so it will stay the same.

Janet has 4 more dollars than Marta. Together they
have $38. How much does each person have?

Answers

Answer:

Janet has $21 and Marta has $17

Step-by-step explanation:

38-4 since Janet has 4 more dollars

34/2 since there are two people

17 but you still have to add the 4 to Janet since she has 4 more dollars

Answer:

Marta has $15, and Janet has $23.

Step-by-step explanation:

38 in half is 19.

19 + 4 = 23

19 - 4 = 15

Equations definitions

Answers

Answer:

Step-by-step explanation:

MEAN - a). Finds the mean of a numerical data set.

MIN - f). Finds the lowest value of a data set.

COUNT - c). Counts the number of values input for a highlighted data set

MEDIAN - d). Finds the middle value of a numerical data set

MAX - e). Finds the greatest value for a data set

SUM - g). Adds all the numbers in a highlighted range together

MODE - b). Finds the number that occurs most often in a highlighted data set.

Plz help me well mark brainliest if you are correct!!....

Answers

A,C,B Is the correct answer
A,C,B should be right! Can I get brainliest!

13. Which of the following symbol stands for the margin of error?
A. E
B. Za/2
C.n
D.o
14. For a 95% confidence level, the confidence coefficient is ___?
A. 1.645
B. 1.96
C.2.33
D.2.585.
15.What do you call the value resulting from subtracting the margin of error from the sample mean?
A. point estimate B. interval estimate C. lower limit of the interval D. upper limit of the interval
For nos. 16-19
A survey on 200 HUMSS students of Bumasa Integrated High School shows that they read on an average of 15. 7 hour
per week. The margin of error is 2.2 hours at a 95% confidence level.
16. What is the sample mean?
A.200
B. 95
C. 15.7
D.2.2 8.
17. Which of the following values is the margin of error?
A.15.7
B. 2.2
C. 0.95 D. 0.05 9.
D.0.05 9.​

Answers

Answer:

13. A

14. B

15. C

16. B

17. C

Step-by-step explanation:

lol can anyone help me asap

Answers

Answer:

A = 34.1 cm²

Step-by-step explanation:

Shape is a triangle.

Formula for area of a triangle is;

A = ½bh

In this triangle;

b is base = 11 cm

h is height = 6.2 cm

Thus;

A = ½ × 11 × 6.2

A = 34.1 cm²

i nedd help im almost done
If yall give me the right answer I called the branly worker to give 1,000 points to right answers so try ya best!!!

Answers

From What I understood, I need to find the area and perimeter of those shapes

Bolded words are answers

1. Triangle

Area

9*15=135

135/2=67.5

Perimeter

15+15=30

30+9=39

2. Pentagon

Area: 15.48

Perimeter: 15

Hope this Helps!

Kirk used the Quantitative Reasoning Process to build a budget while he is going to college. He worked hard over the summer and saved $3,251.35 to live on during the next two semesters of school. Kirk will receive a scholarship each semester for $1,157.9. If he plans to use up all of his savings while at school, how much money can Kirk spend each month, on average, for things like groceries, entertainment, and miscellaneous items?
Assume two semesters equals 8 months total. Also assume Kirk has no other expenses than what he has listed here.



Scholarship for each Semester: $1,157.9



Tuition & Books Cost per Semester: $2,000

Housing Cost for a two-semester Contract: $1,025



If he has money left, what is the average monthly amount Kirk can afford to spend each month?

If he has overspent, what is the average monthly amount Kirk would be in debt each month?

(Indicate this amount with a negative sign)



(Round your answer to the nearest cent)

Answers

Kirk can spend $695.89 each month.

Averages

Given that Kirk worked hard over the summer and saved $3,251.35 to live on during the next two semesters of school, and Kirk will receive a scholarship each semester for $1,157.9, to determine, if he plans to use up all of his savings while at school, how much money can Kirk spend each month, on average, for things like groceries, entertainment, and miscellaneous items, assuming two semesters equals 8 months total, the following calculation must be made:

(3251.35 + (1157.9 x 2)) / 8 = X(3251.35 + 2315.8) / 8 = X5567.15 / 8 = X695.89 = X

Therefore, Kirk can spend $695.89 each month.

Learn more about averages in https://brainly.com/question/12322912

#SPJ1

Answer:

Kirk can spend $695.89 each month.

Step-by-step explanation:

Write an inequality to represent the situation below:
A child can be a maximum of 50 pounds to play on the playground.

ANSWERS ONLY NO LINKS PLEASE!!!!

Answers

[tex]c\leq 50\\\\(c=child)\\\\Sorry \ if \ this \ didn't \ help \ you.[/tex]

PLEASE ASNWER ILL GIVE BRAINLIEST

Answers

Answer:

8.6

Step-by-step explanation:

a^2+b^2=c^2

7^2+5^2=c^2

49+25=c^2

74=c^2

8.6=c

Compute the following: Subscript 8 Baseline C Subscript 8 a. 16 b. 0 c. 64 d. 1

Answers

The answer is c 64 because I know I did a

i think its D if im not mistaken....

Write the slope -intercept form 3x-5y=-15

Answers

Answer: M= 3/5

Step-by-step explanation:  3/5x=3= M=3/5

Other Questions
Why did historians add the designation of the Byzantine Empire when the people at the time did not use that designation? A transformation is a of a figure to the or Our Respiratory system gets rid of Carbon Dioxide as a waste product. Carbon Dioxide is then taken in by plants for the process of _____ A sentence that can stand alone and doesn't need any additional help is 1 pointcalled *dependent clausesentenceindependent clausefragment Secondary teachers usually teach at the college level. true or false This is just a guess, so disregard it. (Unless it's right) Find the area of the triangle.A right triangle has a base of 7 meters and a height of 6 meters.7 m 6m Question 12When applying for college loans you should:A. Sign for the first loan offered to you!B. Shop around for the best loan rates and pay-back options.OC. Only look into one company for a college loan.D. Sign the one that has the longest payback amount. What is -3y(y-8)(2y+1)=0 What is the pH of a solution with a concentration of 7.6 107 M H3O+? 0.993 6.12 7.88 8.34 Always shoot for the sun and you will shine. meaning of the sentence A line has this equation: y = -8x + 8,Write an equation for the parallel line that goes through (9,7) Plz help! No link plz! I need to finish fast! 1.A half step is the closest distance between two notes. True / False2.Pitch refers to how loud or soft a note is. True False Which historical allusions did President John F. Kennedy make in his Inaugural Address? Select all that apply.the American Revolutionthe Civil Warthe Discovery of Americathe Declaration of Independence What does the underlined phrase on page 1suggest about the flowers the authordescribes in the passage?They feel others do not appreciate what theyprovide.They have abilities that most people lack.They do not know how important they are toothers.They do not plan to profit from their actions. NO LINKS!What do you think makes a good writer? How can you tell if something is written well?I NEED EXAMPLES! GIVING BRAINLIEST! Pablo, no _____ por el parque, por favor. Es muy tarde.A. caminoB. caminasC. caminesD. caminamos A triangle has angle measurements of 56, 54, and 70. What kind of triangle is it? Select the best answer for the question15. Which of the following parenthetical citations uses punctuation correctly?O A. Mr. Wednesday is described as having "a craggy, square face with pale grey eyes (Gaiman 23)."O B. Mr. Wednesday is described as having "a craggy, square face with pale grey eyes," (Gaiman 23).O C. Mr. Wednesday is described as having "a craggy, square face with pale grey eyes" (Gaiman 23).O D. Mr. Wednesday is described as having "a craggy, square face with pale grey eyes" (Gaiman 23)