Mathematics Middle School

Solve the system of linear equations by substitution.
x + 3y = 4
-x + 2y = 6

Answers

Answer 1
For my answer i got X=-2 and Y=2 Aka (-2,2)
Answer 2
I got the answer (-2,2)

Related Questions

Please answer! Very easy and will mark brainlist.

Answers

Answer:

18.57

Step-by-step explanation:

First you have to simplify the equation using cross-multiplication

You should get 7v=130

Then divide both sides by 7

You should get v=130/7

simplify that and get 18 4/7

Turn that into decimal form and you get 18.57

Answer:

18.57

Step-by-step explanation:

1. Multiply all terms by the same value to eliminate fraction denominators

v/10 = 13/7

10 x v/10 = 10 x 13/7

2. Simplify

130/7 = 18.571428571429

3. Round to the Nearest Tenth

18.57

Kurt deposited money into his bank account every month. The amount of money he deposited in the first 5 months of 2014 is listed in the table.

Month Amount Deposited
(dollars)
January 1,200.32
February 985.43
March 1,200.65
April 1,987.34
May 1,000.98
The total amount of money that Kurt had deposited into his account at the end of May is ______
The total amount of money that he had deposited into his account at the end of March is _______

Answers

Answer:

that is the answer

Step-by-step explanation:

You have the answer I’m pretty sure

Look at the attached images to answer the question!

Answers

they vary directly (im just writing this cause my answer wasn’t long enough)
A vary directly
Reason:
When number of test increases time also increases

B vary directly
Reason:
When pounds increases cost also increases

You and your family took a trip over track out that was 1.5 hours away. Which two trips could your family have taken?
PICK TWO TRIPS that would take 1.5 hours.

A. Drive 40 miles per hour between Raleigh, NC and Fayetteville, NC, which are 60 miles apart.

B. Take a train going 100 miles per hour from Rolesville, NC to Myrtle Beach, SC, which are 200 miles apart.

C. Ride a bus going 30 miles per hour to the NC State Fairgrounds, which is 45 miles from your house.

Answers

Answer:

i think a

Step-by-step explanation:

C is your answer 45-30 =15 which is half of 30 so it will be .5 so the whole trip is 1.5 hours

What does negative 5 over 2 < −1 indicate about the positions of negative 5 over 2 and −1 on the number line? (1 point)

A. negative 5 over 2 is located on the left of 0 and −1 is located on the right of 0
B. negative 5 over 2 is located on the right of 0 and −1 is located on the left of 0
C. negative 5 over 2 is located on the left of −1
D. negative 5 over 2 is located on the right of −1

Answers

Answer:

D

Step-by-step explanation:

This indicates that 5/2 is less than -1 on the number line.

A. They both have a positive correlation, but Graph 1 has a stronger association. B. They both have a positive correlation, but Graph 2 has a stronger association. C. They both have a strong association, but Graph 1 has a positive correlation while Graph 2 has a negative correlation
d. They both have a strong assoication, but Graph 1 has a negative correlation while Graph 2 has a positive correlation​

Answers

the answer is b (they both have a positive correlation)

The comparison between the two graphs is that: B. they both have a positive correlation, but Graph 2 has a stronger association.

What is a positive correlation?

A positive correlation refers to a terminology that describes a scenario in which two or more variables move in the same direction and are in direct proportion.

This ultimately implies that, a positive correlation exists in a graph when its variables have a linear relationship or are in direct proportion.

Based on the graphs attached in the image below, we can deduce that the two graphs both have a positive correlation, but Graph 2 has a stronger association.

Read more on positive correlation here:

brainly.com/question/3753830

#SPJ2

What is the equation of the line in the graph?

Answers

Answer:

ummmmmmmmmmmmmmmmmmmmmmmmmmm

Step-by-step explanation:




y=2x+1
i think. hope that helps

The equation of the horizontal line passing through the point (-3, 8) is y = 8. O True O False​

Answers

Answer:

I am guessing that it is true

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

y=8 is a horizontal line on the y axis

Need helpp fastt plss will give brainliest to who is correct plss helpp!!!!!!!!! It a test I need good grades PLSSSS HELPPPPP!!!!!!!!!!

Answers

Answer: I think 48

Step-by-step explanation:

If the ratio is 8 North American butterflies :4 South American butterflies then the South American butterflies would be half of North American. There are 96 North American butterflies and half of that is 48

Use the Distributive Property to simplify the expression.

8(x + 10)

Answers

Answer:

The simplified expression is 8x+80 so ya

Step-by-step explanation:

yeee

The answer is : 8x+80

Explanation:

Write each phrase or sentence as an algebraic expression or equation. DO NOT use a calculator. Do not write an inequality.

1. 6 more than y

2. times a number

3. 5 less than the product of 10 and c

4. 14 more than 6 times t

5.The sum of x and y is 18

6. A number minus 12 is 7

Answers

Answer:

done

Step-by-step explanation:

1.y+6

2.x

3.10+c-5

4.14+6t

5.x+y=18

6.-12=7

Need helpp fastt plss will give brainliest to who is correct plss helpp

Answers

Answer:

Step-by-step explanation:

Calculation is done as follows:

Number of movie posters remaining = 120 - 24 = 96

Number of band posters remaining= x  

120:100 = 96:x

x = 80  

100-x = 100 - 80 = 20

So, she should sell about 20 band posters for her to maintain the same ratio of the movie posters to the band posters.

Sorry for not having it on the first one-

Answers

Answer:

Drew is incorrect. She forgot to take the reciprocal of -1/6. Drew just did (3/4)(-1/6) which got her -3/24 instead -9/2.

Step-by-step explanation:

Same, change, reciprocal:

(3/4)(-6/1)=-18/4=-9/2.

Sadly Drew is incorrect. She forgot to take the reciprocal of -1/6.
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