xy? - 2x+y when x = 2 and y=-3
What is the answer

Answers

Answer 1
The answer is 1
Pls give brainliest ❤️❤️
Answer 2

Answer:

Step-by-step explanation:

-2x+y

-2x2+-3

-4+-3

7


Related Questions

i need you to explain the answer please and thank you!!

Answers

Answer: January, because negative numbers are positive numbers' opposite; so -11.4 < -10.4

Ibrahim spends 1/3 of his earnings on food and 1/4 on clothes. He then saves the rest.what fraction does he (a) spend altogether (b)save 1 What fraction does he (a) spend altogether (b) Save?​

Answers

Spending = 1/3 + 1/4 = 4/12 + 3/12 = 7/12
Saving = 12/12 - 7/12 = 5/12

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

The formula for adding two fractions:

= a/b + c/d

= (ad + bc) / cd

The fraction spent altogether on food and clothes is 7/12.

What is a fraction?

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

Example: 1/2, 1/3 is a fraction.

We have,

Fraction of earnings spend on food:

= 1/3

Fraction of earnings spend on clothes:

= 1/4

Fraction of total spending on food and clothes.

= 1/3 + 1/4

= (4 + 3) / 12

= 7/12

The formula for adding two fractions:

= a/b + c/d

= (ad + bc) / cd

Fraction of earnings saved after spending on food and clothes.

= 1 - 7/12

= (12 - 7) / 12

= 5/12

Thus,

The fraction spent altogether on food and clothes is 7/12.

Learn more about fractions here:

https://brainly.com/question/24370499

#SPJ2

three employees each clocked a different number of hours worked this week.



Which employee has the highest earnings per hour?

Answers

Answer:

?

Step-by-step explanation:

There is missing information. Ask this question again but with a picture showing how much the 3 employees worked/how much they each get per hour and I'll be glad to help.

Premier Consulting’s two consultants, Avery and Baker, can be scheduled to work for clients up to a maximum of 160 hours each over the next four weeks. A third consultant, Campbell, has some administrative assignments already planned and is available for clients up to a maximum of 140 hours over the next four weeks. The company has four clients with projects in process. The estimated hourly requirements for each of the clients over the four-week period are as follows:
Client Hours
A1 180
B2 75
C3 100
D4 85
Hourly rates vary for the consultant–client combination and are based on several factors, including project type and the consultant’s experience. The rates (dollars per hour) for each consultant–client combination are as follows:
Client
Consultant A B C D
Avery1 100 125 115 100
Baker2 120 135 115 120
Campbell3 155 150 140 130
a. Develop a network representation of the problem.
b. Formulate the problem as a linear program, with the optimal solution providing the hours each consultant should be scheduled for each client to maximize the consulting firm’s billings. What is the schedule and what is the total billing?
c. New information shows that Avery doesn’t have the experience to be scheduled for client B. If this consulting assignment is not permitted, what impact does it have on total billings? What is the revised schedule?

Answers

Answer:

The correct network diagram is the first one.

Step-by-step explanation:

Max 100 x 11 + 115 x 23 + 125 x 12 + 120 x 24 + 1 x 12 + 120 x 21 + 140 x 33 + 135 x 22 + 130 x 34 + 115 x 13 + 155 x 31 + 1

Excel formulation:

А B с D E F G H 1 1 2 2 3 4 5 6 7 Flow RHS Avery =SUM(C3:06) 160 Baker =SUM(C7:C10) 160 Campbell =SUM(C11:C14) 140 A =SUM(C3,

Solver inputs:

Set Objective: $D$15 To: Max Min O Value Of: 0 By Changing Variable Cells: $C$3:$C$14 + Subject to the Constraints: $G$3:$G$5

Solution:

Amount Billing

Avery-Client A 0 0

Avery-Client B 40 5000

Avery-Client C 100 11500

Avery-Client D 0 0

Baker-Client A 40 4800

Baker-Client B 35 4725

Baker-Client C 0 0

Baker-Client D 85 10200

Campbell-Client A 140 21700

Campbell-Client B 0 0

Campbell-Client C 0 0

Campbell-Client D 0 0

Total Billing  57925

Make 'Avery to B' zero in the solver entry and run the model again:

Amount Billing

Avery-Client A 0 0

Avery-Client B 0 0

Avery-Client C 100 11500

Avery-Client D 40 4000

Baker-Client A 40 4800

Baker-Client B 75 10125

Baker-Client C 0 0

Baker-Client D 45 5400

Campbell-Client A 140 21700

Campbell-Client B 0 0

Campbell-Client C 0 0

Campbell-Client D 0 0

Total Billing  57525

The sales tax rate is 10%. If Kyle buys a digital camera priced at $579.25, what will be the total cost including tax? Round your answer to the nearest cent:

Answers

Answer:

638.75

Step-by-step explanation:

Well you can actualy do this on a calculator If put in proporly use the 2nd button and push (sin) to get a tax percentage.

Answer:

637.17( not very sure what you mean by round to nearest cent)

Step-by-step explanation:

take the $579.25 and add 10% easiest way is on a calculator

ASAP Lots of points!! 100 points!! Which expression is equivalent to 2^4 ⋅ 2^−7?
(Remember 2 to the power of 4 x 2 to the power of -7 = 0.125)
1 over 2 to the power 11
1 over 2 to the power 3
2 to the power of 3
2 to the power of 11
you can cancel out 2^11 and 2^3

Answers

Answer:

the answer for this is:

subtract 7 from 4 to get -3

you then have 2^-3

remove the negative exponent by rewriting as 1/(2^3)

Step-by-step explanation:

Select the situation that have a unit rate equivalent to 3 units to 1 unit!!??

Answers

Answer: i believe it can be  c ( the water house streams 6 gallons of water in 2 minutes.

Step-by-step explanation:

i dont have explanation just the answer. and i hope that the right answer.

Answer:

C., E.

Step-by-step explanation:

A. 3/30 = 1/10   No

B. 3/6 = 1/2   No

C. 6/2 = 3/1   Yes

D. 3/3 = 1/1   No

E. 15/5 = 3/1   Yes

Answer: C., E.

A class of 40 students took a test 20 students had an average score of 65. the other students had an average score of 52. what is the average score of the whole class?

At a health club, 28% of the members are men, the rest are women. If the average man is 33 years old, and the average woman is 38 years old, what is the average age of all the members?​

Answers

Answer:

One: 58.5

Two 36.6

Step-by-step explanation:

One

20 students * 65 = 1300 This is the total score of all 20 students. They may not all get 65, but 1300 is what their average total is.

20 students * 52 = 1040

The total score of all 40 students was 1300 + 1040 = 2340

The average for the entire class was 2340 / 40 = 58.5

Two

This question is done almost the same way.

Supposes the total number of members is 100. That means that 28 of them are men

28 * 33 = 924     This is the total age for the men

100 - 28 = 72        Out of 100, 72 of the people there are women.

72 * 38 = 2736

The total number of years of all of the members is

924 + 2736 = 3660      

The average age of all members is 3660/100 = 36.6

Why did I pick 100 as the total membership? It is because a percentage is number out of 100. Am I allowed to invent things like that? Sure. I'm just using the definition of a percentage.

The average will make it come out the same.

Suppose you buy a new TI-84 calculator that has a listed price of $109.99. How much will you have to pay for the calculator including Michigan sales tax of 6%

Answers

9514 1404 393

Answer:

  $116.59

Step-by-step explanation:

If I had a TI-84 calculator, I could figure it out.

__

The tax is the product of tax rate and taxed amount (rounded to cents):

  0.06 × $109.99 = $6.5994 ≈ $6.60

The amount you have to pay is the total of the listed price and the tax:

  $109.99 +6.60 = $116.59

Mr. Hernandez divided 30 large cookies onto 4 plates. How many cookies are on each plate?

Answers

Answer:

seven and a half

Step-by-step explanation:

Solve x/2- 8 = y for x. A. x= 1/2y

Answers

Answer:

x = 2y + 16

Step-by-step explanation:

Given equation:

x/2 - 8 = y

Solve for x:

x/2 = y + 8     ⇒ add 8 to both sidesx = 2y + 16     ⇒ multiple both sides by 2
>> Answer :

____________

[tex] \: [/tex]

[tex] \frac{x}{2 - 8} = y[/tex]

[tex] \frac{x}{2} = y + 8[/tex]

[tex]x = \bold{2y + 16}[/tex]

fill in the blank (Geometry B)

Answers

19............(i think).............

You read online that a 15 ft by 20 ft brick patio would cost about $2,275 to have professionally installed. Estimate the cost of having a 23 by 28 ft brick patio installed

Answers

Answer:

$4884 to the nearest $.

Step-by-step explanation:

By proportion it is  2275 *  (23*28) / (15*20)

= $4884

Let A = {x : 2x² + 3x - 2 = 0} and B = {x : x² + 3x - 4 = 0 } find (A U B) × (A Π B)​

Answers

Given :

A = {x: 2x² + 3x - 2 = 0 } B = {x : x² + 3x - 4 = 0 }

To find :

(A U B ) × (A Π B )

Solution :-

The first set is ,

A ={x : 2x² + 3x - 2 = 0}

Solving the Quadratic equation ,

2x² + 3x - 2 = 0 2x² + 4x - x - 2 = 0 2x( x + 2) -1( x + 2 ) = 0(2x -1) ( x + 2) = 0 x = 0.5 , -2

Hence ,

A ={0.5, -2}

The second set is ,

B ={ x :x² + 3x - 4 = 0 }

Solving the Quadratic equation ,

x² + 3x - 4 = 0 x² + 4x - x - 4 = 0 x( x + 4)-1 ( x +4) = 0 (x + 4) ( x -1) = 0 x = 1 , -4

Hence ,

B ={1,4}

Now ,

A U B = { 0.5 , 1 , 4 , -2} A Π B = {∅ }

Since AΠ B is a null set , hence ,

A × B = {}

50 tickets need sold but only 9 have been sold what percent have been sold?

Answers

Answer:

18%

Step-by-step explanation:

Choose the BEST estimate!

Answers

Answer:

About 300 dollars

Step-by-step explanation:

THe best estimate for week one is 300, because 96 rounds to 100, and 100 * 3 equals 300.

The best estimate for week 2 is 600, because 204 rounds to 200, and 200 * 3 equals 600.

600 - 300 = 300, therefore the difference is about 300 dollars.

Hope this helps!

What is the value of 7x (3 + x/4) when x= −8?
A −280
B −170
C −56
D 280
PLEASE HELP ME

Answers

The answer is -56. For future problems, I highly recommend the calculator app “Desmos”, and writing the equation out in the calculator, and then replacing X values with the number (-8).

Answer:

-56

Step-by-step explanation:

Equation = 7x( 3 + x/4)

f(x) = 7x( 3 + x/4)

f(-8) = 7( -8 )( 3+ -8/4 )

f(-8) = -56 ( 3+ ( - 2 ))

f(-8) = -56( 1 )

f(-8) = -56

-Chetan K

Write an equation for the line that passes through the given point and is parallel/perpendicular to the graph of the given point.
Parallel: Y=3x-2; (3,2)
Perpendicular: Y= -2x-1; (2,-1)

Also I will mark brainly to who explain what they did step by step

Answers

Answer:

Parallel: The slope is the same as in the previous equation. So, y=3x+b. To find the value of b, you plug in the given point, 2=3(3)+b, b=-7. So the equation is y=3x-7.

Perpendicular: The slope is the negative reciprocal when an equation is perpendicular. The negative reciprocal of -2 is 1/2. So, y=1/2x+b. To find the value of b, you plug in the given point, -1=1/2(2)+b, -1=1+b, b=-2. So the equation is y=1/2x-2.

:)

9514 1404 393

Answer:

parallel: y = 3x -7perpendicular: y = 1/2x -2

Step-by-step explanation:

The given line equations are written in "slope-intercept" form.

  y = mx + b . . . . . . . . . m is the slope; b is the y-intercept

If we solve this equation for b, we find ...

  b = y - mx

This is useful for completing the equation of the line through a given point when the slope is known.

Parallel

A parallel line will have the same slope as the given line. The given line has a slope (x-coefficient) of 3. We can find the "b" of the line through the desired point as ...

  b = y -3x

  b = 2 -(3)(3) = -7

The equation of the parallel line is ...

  y = 3x -7

__

Perpendicular

A perpendicular line will have a slope that is the opposite reciprocal of the slope of the line it is perpendicular to. Here, the given line has a slope of -2, so the perpendicular line will have a slope of ...

  -1/(-2) = 1/2

Then the y-intercept is ...

  b = y -(1/2)x

  b = -1 -(1/2)(2) = -2

And the equation of the perpendicular line is ...

  y = 1/2x -2

__

The attached graph shows the original lines as dashed lines, and the corresponding desired lines as solid lines in the same color.

What is the hypotenuse? 68km 51km c

Answers

Answer:

85 km

Step-by-step explanation:

[tex]68^{2} +51^{2} =c^{2}[/tex]

4,624+2,601 = [tex]c^{2}[/tex]

7,225 =[tex]c^{2}[/tex]

Square both side and you get your answer 85km

What is this answer

Answers

Answer:

2^3 + 5^2 = 34

7^2 - 3^3 = 22

8^2 + (square root) 100 = 74

Step-by-step explanation:

Hope this helps! Lol I couldn't find the square root symbol.


Find the perimeter of the
triangle.
16% + 16) cm
(9%-11) cm

Answers

Answer:

Step-by-step explanation:

Three equal sides, so lets find one by solving for x

6x + 16 = 9x-11

      -3x = -27

         x = 9

6(9) + 16 = 70

 9(9) - 11 = 70

70(3) = 210 cm

What is the product of 2.5 x 4.3?

Answers

Answer:

10.75

Step-by-step explanation:

2.5 x 4.3 = 10.75

Answer:

[tex]{ \rm{2.5 \times 4.3 = 10.75}} [/tex]

Today eight friends went for lunch there total bill was $34.56, including tax. One of them ordered always soda and needed to pay only $1.94. The other seven friends or the same daily special. How much did each of the other friends need to pay?

Answers

Answer:4,66

Step-by-step explanation: first , we subtracted 1 people . 34,56 - 1,94 = 32,62 . then we divided for seven people . we have : 32,62 : 7 = 4,66 each person

Evelyn swimming pool requires 3 quarts of a bacterial cleaning agent five times a month how many gallons of this agent will Evelyn use during June July August?

Answers

Answer:

180 litres

Step-by-step explanation:

Quart: 1.1 litre

3 quarts used every 1 time its cleaned

cleaned 5 times 1 month

5 x 3=15

12 months in a year 15 x 12 = 180

What is the area of this trapezoid?



Enter your answer in the box.

= cm²

Answers

A = 440

answer...

A

=

a

+

b

2

h

=

25

+

19

2

·

20

=

440

Can someone help me with number 18 please!!!!

Answers

Step-by-step explanation:

try general keyboardjdjdjjkdd

find the equations of line parallel to x-2y=6 that pass through (-4,1)​

Answers

Step-by-step explanation:

Slope:(II)m= -2

y-1=-2(x+4)

y-1=-2x+8

+1. +1

Answer: y=-2x+9

The exterior angle of a triangle is 164 degree and one
 of its interior opposite angle is 98 degree. Find the other
 interior opposite angle. ​

Answers

Answer:

• Let the other interior angle be x

[tex]{ \rm{x + 98 \degree = 164\degree}} \\ \\ { \rm{x = 164\degree - 98\degree}} \\ \\ { \boxed{ \rm{x = 66\degree}}}[/tex]

what is 3,936.58 rounded to the nearest 1,000

Answers

Answer:

936.58

Step-by-step explanation:

Help help please please

Answers

Step-by-step explanation:

=2(20)+2(14)

=2⋅20+2(14)

=40+2(14)

=40+2⋅14

=40+28

=40+28

=68

Answer:

P = 68

Step-by-step explanation:

P = 2L + 2W

P = 2(20) + 2(14)

P = 40 + 28

P = 68//

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