Solve there Systems of equations. 2x + y = 15
3x - y = 5

Answers

Answer 1

Answer:

your answer would be (4, 7)

Step-by-step explanation:

Answer 2
Yes the answer is four and seven

Related Questions

Selena is baking chocolate chip cookies. The recipe calls for 2 1/3 cups of semi-sweet chocolate chips. If she has already put in 1 1/2 cups into the batter , how many more cups of chocolate chips should be added to the batter?​

Answers

Answer:

5/6

Step-by-step explanation:

If you minus 1 1/2 from 2 1/3 you get 5/6 left.

Please mark brainliest.

5/6 cups of more chocolate chips should be added to the batter.

Given that, the recipe calls for [tex]2\frac{1}{3}[/tex] cups of semi-sweet chocolate chips. Selena has already put in [tex]1\frac{1}{2}[/tex] cups into the batter.

What is a fraction?

In Mathematics, fractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing.

Number of more cups of chocolate chips should be added to the batter = [tex]2\frac{1}{3}-1\frac{1}{2}[/tex]

= 7/3 - 3/2

= 14/6 - 9/6

= (14-9)/6

= 5/6

Therefore, 5/6 cups of more chocolate chips should be added to the batter.

To learn more about the fractions visit:

https://brainly.com/question/10354322.

#SPJ5

Determine if each ratios or rates are equivalent.

$12 for 3 paperback books, $28 for 7 paperback books.

Answers

Answer:

no these are not equivalent

Step-by-step explanation:

these aunt equivalent because 12+12 =24 and 3+3=6 not 7 or 28 so no ccx these are not equivalent

somebody help me answer these ik I'm not the smartest​

Answers

Answer:

1. 3/5

2. 70/9

3. 12 3/5

Step-by-step explanation:

hope it helps

Answer:

reduce 18/30

divide both numerator and denominator by 6

3/5

change to improper 7 7/9

multiply 7*9=63

63+7=70

70/9

Change to mixed number 63/5

63/5=12 remainder 3

12 3/5

A line passes through the point (-2, 4), and its y-intercept is (0,6). What is the equation of the line that is
perpendicular to the first line and passes through the point (5, 4)?

Answers

Answer:

y = -x + 9

Step-by-step explanation:

The line that passes through the points (-2,4) and (0,6) has a slope of 1, and a y intercept of 6. The equation to the first line is y = x + 6. and perpendicular lines always have the opposite, reciprocal slope of the other line. So the slope for the second line would be -1. A line with the slope of -1 and a point of (5,4) would contain the points (5,4) , (4,5) , (3,6) , (2,7) , (1,8) , and (0,9) , which is the y intercept for the second line. So the equation for the second line would be y = -x + 9

Examine the diagram, and answer the question.

The points A(2,7)
and B(−4,−3)

are located in the coordinate plane as shown.

Points A and B are shown in the coordinate plane at the locations indicated.

© 2016 StrongMind. Created using GeoGebra.
What is the approximate distance between the two points?
15.6
7.3
6.7
11.7

Answers

9514 1404 393

Answer:

  11.7

Step-by-step explanation:

GeoGebra can not only draw the picture, it can answer the question. The approximate distance between the points is about 11.7 units.

__

The distance formula is used for this:

  d = √((x1 -x1)² +(y2 -y1)²)

  d = √((-4-2)² +(-3-7)²) = √(36 +100)

  d = √136 ≈ 11.7

_____

Once you find that the distance is about √136, you know it is more than 11 (11² = 121) and less than 12 (12² = 144). The only answer choice that makes any sense is 11.7.



A bakery made 140 buns. A restaurant bought 80 of the buns. The remaining buns were put into bags of 4 buns each. How many bags of buns
are there?

Answers

Answer:

A bakery made 140 buns. A restaurant bought 80 of the buns. The remaining buns were put into bags of 4 buns each. How many bags of buns

are there?

Answer:

30, 30 bags of buns your welcome

i can't do this, can someone explain​

Answers

Answer:

i think its m=4 too

Step-by-step explanation:

mhhhh

A man drove his car a distance of 260 miles in 4 hours. If continuing at this rate is possible, he will travel ____ miles in 8 hours. Someone pls help im sooo behind in maths and im really confused

Answers

Answer:

...520 miles

Step-by-step explanation:

if he keeps the same pace then you can just put two and two together 260 + 260 = 520 (seems too easy so sorry if im wrong)

A Census Bureau report on the income of Americans says that with 90% confidence the mean income of all US households in a recent year was $57,005 with a margin of error of $742. This means that

Answers

Answer: d. the census bureau got the result 57,005 plus or minus 742 using a method that will capture the true median income 90% of the time when used repeatedly.

Step-by-step explanation:

No t-value has been included in this interval so it cannot be correctly labeled a confidence interval.

This invalidates options a to c.

Option d is therefore the correct answer because it states that the census bureau simply got those results above without claiming that the results constituted a confidence interval.

please helppp
(literally posting my entire math lesson)

Answers

Answer:

B

Step-by-step explanation:

Point B is located 6.5 tenths left of -8.

Answer:

Point B

Step-by-step explanation:

If you count 5 steps backward from -8, you land in the direct middle of -9 and -8. You can also count 5 steps forward from -9, but it doesn't change that the number represented is -8.5. Now focus on the distance from -8.5 to -9 (because between that distance are the points that we might be using). You repeat the same process used above, so if you half the distance between -8.5 and -9 then you'll get -8.75. As we can see, Point A is the closest to -8.75 compared to Point B. It wouldn't make sense to choose Point B because as we mentioned before, Point A is now most certainly not -8.65. Point B represents that number the best.

≧◡≦

Mocha here! If this answer helped you, please consider giving it brainliest because I would appreciate it greatly. Have a wonderful day!

(Sigma)20 4(8/9)^n-1=?
1

Answers

Convert to a simplified fraction.

20 amgiS ⋅ 9n / 2^2+3n − 9^n

Move 20 to the left of Sigma.

20 Sigma

Name the following note!!

Answers

Answer:

Maybe this will help btw not math

Step-by-step explanation:

-3x + 18 = 6

x = ___
show work please

Answers

Answer:

x=4

Step-by-step explanation:

-3x + 18 = 6

First, we have to get x alone. So, we have to subtract 18 from 6.

6 - 18 = -12

-3x = -12

-12/-3 = 4

x=4

I need help on this question

Answers

Answer:

7:8

Step-by-step explanation:

EXPERTS OR ACES PLEASE ANSWER THIS FAST DUE IN 2 MIN 50 POINTS

Answers

Answer:

24 blocks

Step-by-step explanation:

b = 2(9) + 6b = 18 + 6b = 24

1) Una fábrica necesita 10 horas de trabajo por persona para producir un ventilador (x) y 15 horas de trabajo por persona para producir un aparato de aire acondicionado (y). Si la fábrica produjo en conjunto 20 ventiladores y aparatos de aire acondicionado en el transcurso de 260 horas, ¿cuántos de estos productos fueron ventiladores? *​

Answers

Answer:

20

Step-by-step explanation:

20x1

=20

10+10

=20

15+5

=20

Answer:

¿Qué trabajo te interesa más? ¿Por qué?

ACADEMIA DE IDIOMAS busca profesor de inglés. Se requiere diploma y experiencia mínima de. Horas flexibles. Escribir a

ZOOLÓGICO necesita persona responsable para cuidar y dar de comer a los animales. Debe ser paciente y enérgica. Llamar  

EMPRESA DE TRANSPORTE necesita conductores de camiones con conocimientos básicos de mecánica. Posibilidad de trabajar tiempo completo.  peluquera con experiencia. Se requiere una persona simpática, creativa e interesada en la moda.Calle de las Terrazas, Cuzco.

 

Step-by-step explanation:

Write an equivalent expression to (-0.25x - 3) - (2.5x + 1.7) using the fewest possible terms.

Answers

Answer: -2.75*x - 4.7

Step-by-step explanation:

In the equation we have only one variable, this means that the minimum possible number of terms will be two, one term with x, and one term without x.

We can start with the equation:

(-0.25x - 3) - (2.5x + 1.7)

Now, let's rewrite this as:

-0.25x - 3 - 2.5x - 1.7

(-0.25*x - 2.5*x) + (-3 - 1.7)

Solving the parentheses we get:

-2.75*x - 4.7

That is the equivalent expression that has the fewest possible terms

Give an example of a data set with an outlier. Describe how the outlier affects the mean, median, and mode of the data ​

Answers

Answer:

Outlier An extreme value in a set of data which is much higher or lower than the other numbers. ... Outliers affect the mean value of the data but have little effect on the median or mode of a given set of data.

Step-by-step explanation:

Hope it is helpful....

Dylan has a bank that sorts coins as they are dropped into it. A panel on the front displays the total number of coins inside as well as the total value of these coins. The panel shows 90 coins with a value of $17.55 inside of the bank. Dylan only collects dimes and quarters. Determine how many quarters and how many dimes Dylan has.

Answers

Answer: There are 57 quarters and 33 dimes.

Step-by-step explanation:

let x = Number of quarters

y= Number of dimes

As per given , we have

x+y = 90  (i)

0.25x+0.10y= 17.55  (ii)

Multiply 10 on both sides of (ii)

2.5x+y= 175.5    (iii)

Eliminate (i) from (iii) , we get

1.5x = 85.5

⇒ x= 57

Put value of x in (i) , we get

57+y=90

⇒  y= 90-57

⇒  y= 33

Hence, there are 57 quarters and 33 dimes.

How do you convert r=8 cos(θ) into cartesian form?

Answers

As relation between Cartesian coordinates (x,y) and polar coordinates (r,θ) is given by x=rcosθ and y=rsinθ i.e. r2=x2+y2 .
As r=8cosθ can be written as.
r×r=8rcosθ or.
r2=8rcosθ or.
x2+y2=8x.
Jul 13, 2016
The collection of monster that are in your closet is 10

solve the equation for x. What was the cost of each raffle ticket?

Answers

Answer:

im confused?

Step-by-step explanation:

solve the equation for x. What was the cost of each raffle ticket?

what is the sum of ​

Answers

Answer:

C

Step-by-step explanation:

Jackson´s Bakery sold 102 ice cream cakes and 68 fruit tarts in one weekend. Ice cream cakes are $27 and fruit tarts are $15. How much did Jackson's Bakery make in one weekend

Answers

Answer:

$3, 774

Step-by-step explanation:

102 ice cream cakes, and 68 fruits tarts

One cream cake is $27 and a fruit tart is $15

Meaning, from ice cream cakes, they made 102($27) = $2754

From fruits tarts, they made 68($15) = $1020

40 POINTS- Are a logistic equation and a logistic regression model the same thing? If not, what's the difference?
I have a logistic equation and need to make a logistic regression model from it but I'm not sure how to. Any help is appreciated :)

Answers

Answer: They are diffrent

Step-by-step explanation: The logistic equation was first published by Pierre Verhulst in 1845. This differential equation can be coupled with the initial condition P(0) = P0 to form an initial-value problem for P(t). Suppose that the initial population is small relative to the carrying capacity. Then P K is small, possibly close to zero.

The logistic regression coefficients are the coefficients b 0, b 1, b 2,... b k of the regression equation: An independent variable with a regression coefficient not significantly different from 0 (P>0.05) can be removed from the regression model (press function key F7 to repeat the logistic regression procedure).

By the way, this is copied from the internet.

Find two numbers with sum 82 and difference 30.

Answers

Answer: I think it would be 112.

Step-by-step explanation:

Q. Of the 100 students in 7th grade , 4 out of every 10 students said that pizza
was their favorite food. Based on this, how many students did NOT say pizza was their
favorite food?

Answers

You can begin by writing a ratio

4:10

To get the total students to 100, you must multiply 10 by 10. Therefore multiply 10x10 and 4x10

This gives a
40:100 ratio

That is how many said pizza is their favorite

To find how many did not, subtract 100-40 (total-part). This gives 60. That means 60 students didn’t say pizza is their favorite.

60

Hope this helps

Marco spent $2.50 to wash his car.
If two quarters operate the car wash
for 60 seconds, how many minutes
did it take Marco to waslı his car?
Answer quickly please

Answers

the answer 300 seconds/5 minutes
5 minutes, look at picture for work

Stuck on my Trigonometry homework :(

Answers

Step-by-step explanation:

sin 23°/6cm = sin A/13cm

(sin 23°/6cm)×13cm= sin A

A= 60.35

I wish this will answer u, n im sorry if im wrong

Answer:

I think A= 60.35

Step-by-step explanation:

Hope this helped have an amazing day!

Please help!! Question is in the picture

Answers

Answer: (5,8)

Step-by-step explanation:

So this is a matter of using a system of linear equations

To start if a total of 13 people got a ticket then we know that

x+y=13

x and y being explained in the problem

then if adult tickets are $40 and children tickets are $20 and the total cost is 360 we can set up the next equation

40x+20y=360

If you were to plug in 1 lets say into x that means that 1 person bought a ticket for $40 this shown by 40 (1) this is the same premise for the childrens tickets.

now we have

x+y=13

40x+20y=360

now we can solve by eliminating one of the variables this is done by either getting rid of the x or y and solving for the other. I solved for the y value first this looks like

-40(x+y=13)

40x+20y=360

Distribute the -40 to each value

giving you

-40x-40y=-520

40x+20y=360

add these together from the top down

the x's cancel leaving

-20y=-160

then isolate the y value by dividing both sides by -20

-20y/-20=-160/-20

leaving you with your y point

y=8

This is how many childrens rickets were sold now we can plug into the first linear equation

x+8=13

now easy subtration to isolate the x point

x+8-8=13-8

x=5

Finally leaving you with point (5,8)

the answer is point (5, 8)

What is the domain of f(x)=
10x1-(4)
?

Answers

Answer:

Domain:(−∞,∞),{x|x∈R}

Step-by-step explanation:

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