Evaluate the expression:
1 - 2(x-y) when x = -2, y = 1

Answers

Answer 1

Answer:

7

Step-by-step explanation:

Plug in the values of x and y: 1 - 2(-2 - 1)Solve what's in parenthesis: -2 - 1 = -3Plug in -3: 1 - 2(-3)2 × -3 = -6Plug -6 in: 1 - -6Simplify: 1 + 61 + 6 = 7

I hope this helps!

Answer 2

Answer:

7

Step-by-step explanation:

Substitute the values into the corresponding variables.

1 - 2(-2 - 1)

1 + 4 + 2

= 7


Related Questions

Parallel to y=-3x+4, x-intercept at 4

Answers

Answer:

y = -3x + 12

Step-by-step explanation:

The slope of parallel line is the same as the original line.

If the x-intercept is 4, this as a point can be stated as (4, 0)

We can now solve for the y-intercept.

y = -3x + b

0 = -3(4) + b

0 = -12 + b

12 = b

Put everything we solved for back into the formula [ y = mx + b ]

y = -3x + 12

Best of Luck!

You have the opportunity to run the helium balloon stand at the Alexander County Fair. Your start-up supplies will cost $60. It will cost $.05 to fill each balloon you sell with helium. You are going to sell each balloon for $1.25. Find your break-even point. How many balloons will you need to sell in order to break- even?​

Answers

Answer:

50

Step-by-step explanation:

1.25 - .05 = 1.20 made per balloon

60/1.2 = 50 balloons sold to recoup 60$ start up and break even

Jason earns $28 for every 4 lawns he mows.

PLZ HELP ME IM GIVING 40 POINTS
. Jason earns $28 for every 4 lawns he mows. If he wants to make $140, how many lawns does he need to mow?

Answers

Answer:

This could easily be answered with a culculator but the answer is 20.

Step-by-step explanation:

5x4=20

What is the solution to the following system of equations? 3x-2y=19y=X - 7

Answers

Answer:

y = 1

Step-by-step explanation:

3(7) - 2y = 19y

21 - 2y = 19y

21 = 21y

y = 1

Solve for y:
-9.6 - y + 4.4y = -1.5

Answers

Answer:

y = 81/34

Step-by-step explanation:

-96+34y=-15

-96+34y+96=-15+96

34y=81

34y/34 = 81/34

y= 81/34

I need help finding the values of x and y!!

Answers

Answer:

x= 22

y = 35

Step-by-step explanation:

The base angles of a isosceles triangle are equal

3x-11 = 2x+11

Subtract 2x from each side

3x-2x -11 = 2x-2x+11

x-11 = 11

Add 11 to each side

x-11+11 = 11+11

x = 22

The sum of all the angles in a triangle is 180

3x -11 + 2x+11 + 2y = 180

Combine like terms

5x +2y = 180

5*22 + 2y = 180

110 + 2y = 180

Subtract 110 from each side

110+2y-110 = 180-110

2y = 70

Divide by 2

2y/2 =70/2

y = 35

2t + 8 is greater than or equal to -4 ( t + 1 ), whats the answer to the equation?

Answers

Step-by-step explanation:

2t + 8 > - 4( t + 1)

2t + 8 > - 4t - 4

2t + 4t < - 4 +8

6t < 4

Divide both sides by 6

T < 4

6

t < 2

3

I think that is the answer

Hope it helps :)

Please be careful about the sign

how can you multiply 1/3 so that the fraction you get you can simplify back to 1/3?

Answers

Answer:

1

Step-by-step explanation:

Multiply 1/3 x 1 so you can simplify 1/3 to 1/3 but other wise 2/6 is 1/3 3/9 is 1/3 and etc

A plumber charges a fixed rate of $40 per job plus $10 for each hour, h, that he works at the job. Which equation models the total amount the plumber charges, y, if he works h hours?

Answers

Answer:

it says how many total so i know we are doing addition we are going to add 40+10=50 so the answer is $50 dollars he charges.

if l is parallel to m, find the value of each missing variable(s)

Answers

Answer:

x=24 y=15

step by step solution:

Solve for the indicated variable. 5y + 4x = 6 for x
solve for x
x=

Answers

Answer:

x = 3/2 - 5y/4

Step-by-step explanation:

5y + 4x = 6

-5y             -5y

4x = 6-5y

/4     /4 /4

x = 6/4 - 5y/4

x = 3/2 - 5y/4

Move all terms that don't contain  x  to the right side and solve.

Answer:........

Step-by-step explanation:

I will give brainliest to whoever gives a good answer!


What is the result when any 2 integers are multiplied? (write down what happens)


a positive integer (integer stays positive)


a negative integer (two negative equals a positive)


an integer


an even number


*Edited

Answers

Answer:

when any 2 integers are multiplied it   becomes an integer

James and mark are delivering newspapers. If James delivers 100 papers in one hour and Mark delivers
150 papers in two hours, how long will it take both of them working together to deliver 1225
newspapers?

Answers

Answer:

7 hours!

Step-by-step explanation:

I need some help, please

Answers

Answer:

0

I hope this helps!

The science club and the French club both ordered pizzas for their end-of-year banquets. After the banquets, the science club had 1 1/4 pizzas leftover and the French club had 2 5/24 pizzas leftover. Between the two clubs, how many total pizzas were leftover?

A. 23/24

B. 1 1/4

C. 3 1/4

D. 3 11/24

Answers

Answer:

[tex]3\frac{11}{24}[/tex]

Step-by-step explanation:

Given parameters:

Leftover pizza from the Science club = [tex]1\frac{1}{4}[/tex]

Left over pizza from french club  = [tex]2\frac{5}{24}[/tex]

Unknown;

Total left over pizzas between the two clubs = ?

Now to solve problem, simply add the leftover from the science club and the french club together;

      Total left over pizza  = [tex]1\frac{1}{4}[/tex]   + [tex]2\frac{5}{24}[/tex]  

                                         = [tex]\frac{5}{4} + \frac{53}{24}[/tex]  

                                         =  [tex]\frac{83}{24}[/tex]

                                         = [tex]3\frac{11}{24}[/tex]

The total left over pizza between the two clubs is [tex]3\frac{11}{24}[/tex]

There are 3 points on the plane.Explain or determine whether point C is closer to point A or point B.

Answers

Point C us closer to point B because if you connected the points B would be in the middle of C going to A line.

Step-by-step explanation:

I hope I helped!

The perpendicular line from a point to a line is the shortest distance from the point to the line

With regards to the three points on the plane, point C is closer to point B

The reason point C is closer to point B is as follows:

The known parameter is;

Three points, A, B, and C, are located on a plane

Required:

To explain or determine whether point C is closer to point A or point B

Method:

Define, the relationship between the destination points A, and B

Find the shortest distance from point C, to the definition of points A, and B

Solution:

The relationship between points A, and B is that they form the line segment AB

The shortest distance from a point C to a line segment AB in Euclidean geometry is the  perpendicular distance from the point C to the line segment AB

The line which best approximates the perpendicular line and therefore,

shortest distance from C to AB is the line segment CB

CB represents the shortest line and therefore distance from C to AB, that is

CB is shorter than line segment CA and which shows that it is shorter to go

from C to B, than from C to A or point C is closer to point B than point A

Learn more about Euclidean geometry here:

https://brainly.com/question/24245427

James walk to school 12 out of 20 days which value is equivalent to the fraction of days James walk to school

Answers

Answer:

3/5

Step-by-step explanation:

all you have to do is get the fraction to its lowest point and you get 3/5.

ATTENTION: TRY YOUR HARDEST AND ILL GIVE YOU BRAINLIEST!!!I need the most accurate answers, so only try if you know it: Ill give you brainliest x 4 if you are correct, for number 2 you need to do 1. A line goes through points (7, 3) and (-1,5). Write the equation of the line in POINT-Slope FORM. Show your work, so please hand write it, circle your answer! 2. A line goes through the points (7,3) and (-1,5). write the equation of the line in slope intercept form. Show your work so hand write it please, and attach it to your answer, circle your answer!. 3. Does the point (-4,3) fall on the graph of this line? (the line described in questions #1 and #2). How do you know? Show your work __________ALGEBRAICALLY. (That is, dont draw me a graph... show me using numbers, variables, and/or symbols). PLEASE TRY TO GET DONE TODAY ACCURATE ANSWERS ONLY

Answers

Answer:

waa ;-;

Step-by-step explanation:

sorry ill put it here monday

Answer:

;0

Step-by-step explanation:

hi

Given: m || n, ∠1 ≅ ∠3
Prove: p || q

Answers

Answer:plz more info

Step-by-step explanation:do u have a pic of this question

Answer:

do u have a pic

Step-by-step explanation:

not enough info

1.The growth of a sample of bacteria can be modeled by the function b(t)=100(1.06)t where b is the number of bacteria and t is time in hours.

What is the number of total bacteria after 3 hours?

Answers

Given:

The growth of a sample of bacteria can be modeled by the function

[tex]b(t)=100(1.06)^t[/tex]

where, b is the number of bacteria and t is time in hours.

To find:

The number of total bacteria after 3 hours.

Solution:

We have,

[tex]b(t)=100(1.06)^t[/tex]

Here, b(t) number of total bacteria after t hours.

Substitute t=3 in the given function, to find the number of total bacteria after 3 hours.

[tex]b(t)=100(1.06)^3[/tex]

[tex]b(t)=100(1.191016)[/tex]

[tex]b(t)=119.1016 [/tex]

Therefore, the number of total bacteria after 3 hours is 119.1016.

can someone please help me asapp, I’ll mark brainlist!!!

Answers

Answer:

Step-by-step explanation:

They tell you that x is the number of shirts, then say that the number of shirts is equal to 5. So just plug it in

y = 2.5*5

y = 12.50$

Answer:

C (12.50)

Step-by-step explanation:

2.50 x 5 = 12.5

help please please please please please please please please​

Answers

Question 1=  $7,620

Question 2 (a) $3,211

Question 2 (b) $9,828

Look at the graph. Which of the following statements is false?

Answers

Answer:

if the y is 0, does that mean it don't have a y-intercept? is the 0 the point of origin?

the average weight of a nine-banded armadillo is 4.5 kilograms what is the armadillo average weight in pounds?(1kg =2.2 Ib )

Answers

Answer:

9.9lb

Step-by-step explanation:

2.2*4.5=9.9

Answer:

9.9 lb

Step-by-step explanation:

4.5 x 2.2 = 9.9

Karen bought cupcakes for her sister's birthday party. 3 cupcakes had sprinkles on top. The other 27 cupcakes did not have sprinkles. What percentage of the cupcakes had sprinkles?

Answers

Answer:

10%

Step-by-step explanation:

so

3 cupcakes had sprinkles

27 didn't have sprinkles

which means that there are a total of 30 cupcakes, (because 3 + 27 is 30)

so then set up a proportion

part/whole = percent/one hundred

substitute in the given values

3 / 30= precent/100

simplify

1/10 = precent/100

you don't have to use cross products here because it is pretty obvious that 10 * 10 = 100 so then just multiply 1/10 by 10 and you get your answer

percent = 10

A customer was so happy with your service that they wanted to give you a 15% tip on the price of the car. If their car costs $43,780, how much would they pay you in tip?

Answers

Answer:

$6,567

Step-by-step explanation:

Multiply $43,780 by .15

Graph the linear equation and create a table of values

5.) y= -5x

Answers

table:
x|y
-2 | 10
-1 | 5
0 | 0
1 | -5
2 | -10

if you have 50$ and want something that cost 28$, how much money would you have

a)23
b)35
c)42
d)3.2
e)22

Answers

Answer:

e, 22

Step-by-step explanation:

$50-$28=$22

e) 22

Marcus is trying to lose weight for next football season, Four weeks into his diet, he weighed 232
pounds. At nine weeks, he weighed 224.5 pounds. How many weeks will it take Marcus to reach his
goal weight of 214 pounds?

Answers

Answer:

12 weeks

Step-by-step explanation:

every 5 weeks marcus lost 7.5 pounds (232 - 224.5)

or 1.5 per week

so 232 - 214 (start to goal) is a total of 18 pounds

18/1.5 = 12 weeks

Need all the answers

Answers

3. yes 4. no 5. yes 6. complimentary: RTS and UWV, supplementary: QTS and UWV 7. complimentary: GLN and NLJ, supplementary: GLJ and JLK
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