Solve the system of linear equations by substitution.
2x - y = -4
2x - 2y = -10

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

Solve the system of linear equations by substitution.
2x + y = 5
y = x - 5

Answer:

Answer:

x= 29/11 or y= 25/11

Step-by-step explanation:

2x - y= 3 ...........equation 1

x + 5y= 14 ............equation 2

Make x the subject of the formula in equation 2

x= 14 - 5y ..............equation 3

Substitute x=14 - 5y in equation 1

2(14- 5y) - y=3

28 - 10y - y=3

Collect like terms

-10y - y=3 - 28

-11y= -25

divide both sides by coefficient of y

-11y/-11 = -25/-11

y= 25/11

Substitute y= 25/11 in equation 3

x=14 - 5(25/11)

x= 14 - 125/11

x= 29/11

Step-by-step explanation:

I NEED THIS ASAP
WHICH STATMENT SHOWS THE ASSOSIATIVE PROPERTY OF ADDISTION
A. 23 +6Y=6Y+23

B. 13+(K+5)=(13+K)+5

C. 13 . (K.5)=(K.5).13

D. 13 .(K.5)= (13.5).5

hurry AND JUST WRITE THE LETTER

Describe with Algebra
Which of these statements is true? Select all that apply.
(Select all that apply)
The domain is all x-values
The domain is -4.2 The domain is -6 The range is all y-values
The range is y2-4
The range is -4 sys6

someone do this and explain for brain liest :D explain how u do it and yes

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A.8 cm, 15 cm, 17 cm

B.36 cm, 77 cm, 85 cm

C.7 cm, 28 cm, 32 cm

D.20 cm, 21 cm, 29 cm

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Taylor buys 2 gallons of milk for $5.50. What is the cost per gallon

Rate answer choices
2.75 for 1 gallons
5.50 for 2 gallons

Unit answer choices
2.75 for 1 gallon
5.50 for 2 gallons

How much will five gallons of milk cost

5.50
2.75
13.75
16.50

Choose an integer between െ5 and െ10. Label it ܴ on the number line created in Problem 3, and complete the following tasks. a. What is the opposite of ܴ? Label it ܳ. b. State a positive integer greater than ܳ. Label it ܶ. c. State a negative integer greater than ܴ. Label it ܵ. d. State a negative integer less than ܴ. Label it ܷ. e. State an integer between ܴ and ܳ. Label it ܸ.

IM ADDING A PICTURE OF THE QUESTION

Which is the simplified form of the following expression? 7x - 9y + 4x^2 - 2x + 12y


A. 13x + 3y

B. 11x + 21y

C. 4x2 + 5x + 3y

D. 4x2 + 9x + 21y

Write an example of a numerical expression

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A. 6π cm
B. 9π cm
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Car A is traveling east at a steady speed of 40 miles per hour. After 2 hours, it
is 95 miles east of Johnstown.
Car B is traveling east on the same road. Its distance east of Johnstown is
represented by the graph.
Miles east of Johnstown
200
180
160
140
120
100
40
Time (hours)
Where were the two cars in relation to each other when they began traveling?
C A. Car A was 5 miles east of car B
B. Cor B was 5 miles east of car A
C. Car B was 20 miles east of car A
D. Carwa 15 miles east of car B

A recent study claimed that in any given month, for every 5 text messages a boy sent or received, a girl sent or received 7 text messages. Is the relationship between the number of text messages sent or received by boys proportional to the number of text messages sent or received by girls? Explain your reasoning.

*continue the 5 boys to 7 girls pattern.
*then explain how you know if the table is proportional or not; is there a constant?.

Create an algebraic equation and solve. Five more than the product of four and a number is equal to the product of three and that same number increased by six. WILL MARK BRAINLIEST

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B. x=12
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D. x=−1

How can we use a number line to model and find the sum of -8 + 5?

Write an expression using fractions to show how to determine the amount that each person will pay. Then calculate each person's contributions showing all steps in long division.

My chart:
#1 $9.34
#2 $16.17
#3 $9.69
#4 $9.8

Ms. Kwan is making sandwiches for a class picnic. She prepares 1 1/2 sandwiches for each student in the class and 4 more sandwiches in case there are guests. which inequality shows how many students, S, are in the class if Ms. Kwan prepares no fewer then 49 sandwiches?

A S > 30 C S 30 D S < 30

_ _

Sam chose D as the correct answer. how did he git that answer?
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I am not to familiar with diameter and radius, please help with 2.

Please answer number 2 only!!! I know the rest of the answers. The best answer gets Brainliest :D

Saba and Hena saved up Rs. 81.75 and Rs 45.25 respectively to buy a gift for
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I need help. Please hurry up

Pls help ASAP will give brainlies

Solve -11h − 27 ≤ 16h for h.
Group of answer choices

h ≤ -1

h ≥ -1

h ≥ 5/27

h ≤ 5/27

6 + 8x = 6x + 10. can somone plz solve this quick

The TV you want costs $650. You have $410 now and plan
to save $60 per month until you have enough money to buy
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Look at this coordinate plane.

Which equation can be used to find the y-coordinate of point B?

A. y1=23


B. y2=56


C. y−12=46


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Can someone help me with this problem

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The football team has a total of 350 jerseys. There are 154 ​medium-sized jerseys. What percent of the jerseys are​ medium-sized jerseys?

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_answer here_​% are​ medium-sized jerseys.
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Find -8 ÷ - 1/2

1/16
- 1/4
16
-4

In an election, Mr. Jones received 70% of the 1,500 votes cast. How many votes did Mr. Jones receive?

Votes Cast
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%


A. 900
B. 1,050
C. 1,125
D. 1,200