Which equation results from adding the equations in this system?
-2x+y = 8
5x-y=-5
O 7x=13
O 7x=3
O 3x=3
3x= 13

Answers

Answer 1

Answer: 3x=3

Step-by-step explanation: Let's divide this into parts--

1. Adding the x variables: -2x+5x or 5x-2x = 3x.

2. Adding the y variables: y-y or -y+y = 0. (The negative and the positive y cancel each other out.)

3. Adding the numbers: 8-5 or -5+8 = 3.

Now just put it back into an equation: 3x + 0 = 3.

We don't need to add the 0, so the equation changes into 3x = 3.


Related Questions

Select the equivalent expression.
(54.6-10) “ =?
Choose 1 answer:
54. 660
524.860
360
524

Answers

Answer:

©

[tex]( {5}^{4} . { {b}^{ - 10}) }^{ - 6} = ( {5}^{4. - 6} ).( {b}^{ - 10. - 6} ) \\ = {5}^{ - 24} . {b}^{ 60} \\ = \frac{ {b}^{60} }{ {5}^{24} } [/tex]

the 6% state income tax on a 42.000 salary help

Answers

Answer:

$2520

Step-by-step explanation:

would it be 42$ or 42000$? if its 42000$ it would be $2520

42000/100*6

2. How many students are there in Katy's study?
Write your answer in the space below.

Answers

Answer:

39 Students

Step-by-step explanation:

Answer:

there are 38 students

Step-by-step explanation:

9+10=19  

19+7= 26

26+18=38

for brainiest:):):):):):):):)

Answers

Answer:

(a) 0.6

(b) 0.4

Step-by-step explanation:

If I am reading the little table right, You have made 9 shots, and have missed 6 of them. Therefore, in total, you have made [tex]9+6=15[/tex] shots.

The definition of probability is the number of events of a desired outcome divided by the total number of outcomes. Since you wish to make a shot for part a, the number of desired outcomes thus far is 9, out of 15 total shots. Thus,

[tex]P([/tex]making a shot[tex])=\frac{9}{15}=\frac{3}{5}=0.6[/tex]

Since making a shot and not making a shot are mutually exclusive events, and the only two events that could occur when shooting a basket, the probability of not making a shot and the probability of making a shot are all of the possible outcomes, and is thus equal to 1.

[tex]P([/tex]making a shot[tex])+P([/tex]missing a shot) [tex]=1[/tex]

[tex]P([/tex]missing a shot[tex])=1-P([/tex]making a shot[tex])[/tex]

[tex]P([/tex]missing a shot[tex])=1-0.6=0.4[/tex]

QED

Please help! i only have 4 more hours to get caught up!!

Answers

Answer:

I thinks it's y=3x+5

Step-by-step explanation:

try to use desmos to calculate it

It's 3 dot sksjfjjanrjrr

pls help 100 points
pls show step by step explanation and if possible handwritten work
thank you
and you need to factorise ​

Answers

Answer:

This is a required answer:look it once.

PLZ ANSWER WILL GIVE BRAINLIEST *NO LINKS*

Answers

Answer:

6/20 prescient chance to get a green marble and a 8/19 chance to get a purple one

Step-by-step explanation:

I need help fast please

Answers

Answer:

336

Step-by-step explanation:

hope this helps  sorry if not correct

10, 20, 30, 40 minutes 60,120,180,240 calories burned how many calories will Alexa burn in 11 minutes

Answers

Answer:

67 calories

Step-by-step explanation:

because its bettween one

PLEASE HELP ME I NEED TO PASSS
Which statements about the graph of the exponential function f(x) are TRUE? Select all that apply.

The asymptote is y = - 1

f(x) is positive for all x-values less than 1.

The y-intercept is 3

The domain is all real numbers

As x increases , f(x) approaches , but never reaches, -1

The x-intercept is 2.

The range is all real numbers

graph is in the picture

Answers

Answer:

Step-by-step explanation:

When x =3 y=-1

X =2 y =0

X=0 y =3

X = -1 y=6

So c g d f true

Answer:

F

Step-by-step explanation:

If the graph of a function increases as x increases and decreases
as x decreases, the degree must be _____

Answers

Answer:

Degree must be odd.

Step-by-step explanation:

In the end behavior of quadratic functions, the graph will either rise or fall as x increases infinitely. Likewise it will also rise or fall as x decreases infinitely.

Now, when x increases or decreases up to infinity(∞) and f(x) increases up to infinity (∞), it is said to be an even powered function and thus the degree is said to be even.

Similarly, when x increases up to infinity(∞) and f(x) increases up to infinity(∞), it is said to be an odd powered function and degree is odd.

Working mothers who earn $30,000 or less per year receive a rebate on before and after school care of 75%, plus a school bonus of $6,000 that only applies to this category of earnings. Each dollar earned above this amount and up to $40,000 reduces the rebate to 55%, and for any amount above this, the rebate drops to 30%. There are three mothers – Jade earns $40,001, Emily earns $38,000 and Lucy earns $29,550. $, , ? *

Answers

Hold on not too sure yet and I don’t want you to get it incorrect

Check all that apply. π/3 is the reference angle for:
A.7π/3
B.19π/3
C.2π/3
D.15π/3​

Answers

Answer:

A,B,C

Step-by-step explanation:

A.p.e.x

converir 150g a radiones

Answers

Answer:

?

Step-by-step explanation:

Find the measure of angle 3

A. 45°
B. 90°
C. 30°
D. 12°

Answers

Measure of angle 3 is A) 45

please someone help me on this daosjdoaisjfseughoe

Answers

Answer:7,500

Step-by-step explanation:

no way she gonna make 70 k in a year with that percentage

can somone help plz i need help

Answers

Answer:

about 7.3 units

Step-by-step explanation:

to find the answer you do Pythagorean theorem

so you have (-9, -4) and (-2, -6)

you do X1-X2 and Y1-Y2

so -4-(6)=2

and -9-(-2)= -7

now you do a^2 + b^2 = C^2

so 2^2 + -7^2 = C^2

which is 4 + 49= C^2

53=C^2

√53=7.3

so 7.3 units :)

PLEASE HELPPPPP :)!!!

Answers

Answer:

answer: 521

Hope that helps!

Sonya and Jade are traveling from Barcelona to Madrid. They are deciding between 333 different types of transportation (bus, train, and plane) and 222 different times (morning and evening). They each created a display to represent the sample space of randomly picking a type of transportation and a time. Whose display correctly represents the sample space? Choose 1 answer: Choose 1 answer: (Choice A) A Sonya only (Choice B) B Jade only (Choice C) C Both (Choice D) D Neither Sonya's display: \quad Jade's display: \text{B}= \text{Bus} \\ \text{T}= \text{Train} \\ \text{P}= \text{Plane}B=Bus T=Train P=Plane \text{M}= \text{Morning} \\ \text{E}= \text{Evening}M=Morning E=Evening \quad

Answers

Answer:

Step-by-step explanation:

The answer is (Sonya only) don’t know the explanation but I literally got the answer right soo trust me.

Consider the drawing below. What is the measure of angle A?* 1 point w​

Answers

Answer:

[tex]x + 2x = 120 \\ 3x = 120 \\ x = 40 \\ a = 2x = 80[/tex]

I need a answer please

Answers

65^2 = 39^2 + b^2

4225 = 1521 + b^2

b^2 = 4225 - 1521

b^2 = 2704

b = √2704

b = 52 inches

The relationship between the length and weight of certain sea turtles can be approximated by the equation L = 0,55 W,
where L is the length in feet and W is the weight in pounds. If a sea turtle is 2.5 feet long, which is closest to its weight?

Answers

Answer:

4.55 pounds

Step-by-step explanation:

From the above question , we are told that:

The relationship between the length and weight of certain sea turtles can be approximated by the equation

L = 0.55 W,

where

L is the length in feet

W is the weight in pounds. If a sea turtle is 2.5 feet long, which is closest to its weight?

L = 2.5 feet

Hence,

2.5 = 0.55W

W = 2.5/0.55

W = 4.5454545455 pounds

Approximately, weight of the sea turtle in pounds = 4.55 pounds

Help meeeeeEEEEEEEEEEEEEEEEEEE

Answers

Answer:

1.2

Step-by-step explanation:

0.2 x 6 = 1.2

Answer:

1.2

Step-by-step explanation:

0.12 looks like the correct answer but its not because if you look at the problem its 0.2 and 0.12 is smaller than 0.2 so its 1.2 because 0.2 x 6 = 1.2

Hope this helps! Please tell me any questions or concerns in the comments! Byeee <3

PLEASE HELP ME GOOD RATING

Answers

Answer: 76 %
Explanation:
What I did below was create a ratio table with a part whole relationship. The whole for the money was the income and the for the money part was the taxes. Then on the other side is perfect since every percent is out of 100, 100 is on the whole side. Then I used x to represent the percent of her annual income she pays in taxes. In order to find x you multiply the taxes by 100 and divide by the income.

So the Nader is 300 and the other one is 400

Move numbers to the table to show the value of x that satisfies each equation.
Equation value of x
3x = 27
3+ = 1
9

Answers

Answer:

[tex]x = 9[/tex]

Step-by-step explanation:

Given

[tex]3x = 27[/tex]

Required

Solve for x

[tex]3x = 27[/tex]

Divide both sides by 3

[tex]\frac{3x}{3} = \frac{27}{3}[/tex][tex]x = \frac{27}{3}[/tex]

[tex]x = 9[/tex]

PWEASE HELP ILL GIVE BRAINLIEST
Rhona decided to buy a larger 1 1/4 pound package of baking flour rather than a 5/8 pound package. How much heavier is a larger package than a smaller one?

Answers

Answer:It is 5/8 of a pound heavier

Step-by-step explanation:

1 1/4 - 5/8=5/8

Answer:

The larger package is twice as heavy

Step-by-step explanation:

first make 1 1/4 into 5/4 and then multiply the top and the bottom by 2 to get a common denominator of 8. you will end up with 10/8. you can then subtract 5/8 from 10/8, leaving you with 5/8.

A machine packages bags of almonds. The weights of the bags are normally distributed with a mean of 14 ounces and a standard
deviation of 1.2 ounces.
Enter the Z-score of a bag of almonds that weighs 12.2 ounces.

Answers

Answer: -1.5

Step-by-step explanation:

took the test

The z-score of a bag of almonds weighing 12.2 ounces will be negative 1.5.

What is a normal distribution?

The Gaussian Distribution is another name for it. The most significant continuous probability distribution is this one. Because the curve resembles a bell, it is also known as a bell curve.

The z-score is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

A machine packages bags of almonds.

The weights of the bags are normally distributed with a mean of 14 ounces and a standard deviation of 1.2 ounces.

Then the z-score of a bag of almonds weighing 12.2 ounces will be

z-score = (x - mean) / SD

z-score = (12.2 - 14) / 1.2

z-score = -1.8 / 1.2

z-score = -1.5

More about the normal distribution link is given below.

https://brainly.com/question/12421652

#SPJ2

Beverly wants to list the following numbers in order from greatest to least l. Place the rational number in order from greatest to least? 1/6 6% 0.012 1/12

Answers

Answer:

0.012, 1/12 , 6% , 1/6

Step-by-step explanation:

To put these numbers in order, you need to first put them in the same form. Let's turn them all into decimal form.

* To put fractions in decimal form you need to divide the numerator into the denominator.

* To put a percent into a fraction you need to understand that this percent is out of 100. ex: 6% = 6/100 , 3% = 3/100 11% = 11/100. so in order to put the new fraction into a decimal, you put it in the correct decimal place. This is wrong 6/100 = .60 this reads 6 tenths so we need to go over a decimal place.

This is correct 6/100 = .06 This is 6 tenths.

So let's go through:                                             _

   1 divided by 6 equals                                  0.16

   6% is equal to                                               .06

   0.012 is already in decimal form               0.012      _

 1 divided by 12 equals                                         0.083

 #Always remember you have to put the numbers in the original form that they were given.

# Also the more decimal places a number has behind the decimal the less the number

               Ex:  0.012 > 0.011 Even though these have the same decimal place 0.012 is greater because it's a greater number.

0.12 > 0.012

1
Write an algebraic
expression for:
Seven added to five
times a number

Answers

Write an algebraic expression for: seven added to five times a number

Answer:

7 + 5x

a number with 2 decimal places, that is bigger than 4 1/5 but smaller than 4.25

Answers

Answer:

4.21, 4.22, 4.23,

4.24 (choose any one)

Step-by-step explanation:

since 4 1/5 is 4.20, so the numbers in between 4.20 and 4.25 are 4.21, 4.22, 4.23,

4.24 (choose any one)

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