Mathematics High School

(100 points) Give a step by step explanation on how you solved this problem

y = 3x + 3
y = x − 1

Answers

Answer 1
Use substitution
Given both y values, you know that they have to be equal

3x + 3 = x - 1
2x + 3 = -1
2x = -4, divide by 2
x = -2
Now plug x value into any of the equation to find y value
y = 3(-2) + 3
y = -6 + 3, y = -3

Solution: x = -2, y = -3
Answer 2

Answer:

Step-by-step explanation:

Well you have to solve for X to find Y simplified.

Since both equations equal Y you can plug them together

3x+3=x-1

-x          -x

2x+3=-1

-3         -3

2x=-4

Divide -4 by 2 and you get X = -2 then plug X into both equations and boom

y= -3

Related Questions


Devonte is balancing his checking account. His account statement does not include a deposit of $107.00 that he
made on November 1st. What is Devonte's actual account balance?

Answers

Answer:

its  $1,330.26 D

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

3/5 of the pupils in Year 9 say their favourite colour is red.
There are 80 pupils in Year 9.
How many students said red is their favourite colour?

Answers

Answer:

48

Step-by-step explanation:

Since 80 pupils is the total amount of pupils in Year 9...

5/5 = 80

1/5 = 80 ÷ 5 = 16

3/5 = 16 x 3 = 48 (The amount of pupils who said red is their favourite colour in Year 9)

Use the distributive property with factoring to find the equivalent expression. 24n + 32w = (3n + w)

Answers

Answer:

Step-by-step explanation:

24n + 32w = (3n + w)

We're asked to use distributive property, this means that we have to find a way that the given expression on the left hand side is equal to the given incomplete exresssion on the right hand side. In so doing, we're fulfilling the distributive property tag.

Given 3n, 3 factorises 24 into 8, and at the same time, factorises 32 into 4. Thus, we can then conclude that

24n + 32w = 8(3n + 4w)

Which function decreases faster please help

Answers

Answer:

Step-by-step explanation:

Find the length of x​

Answers

The length of x is 2.5

Can someone help me with this

Answers

Answer:

I believe it is 30 toy planes

Hope this helps.

Step-by-step explanation:

toy cars - 2 = 12

toy planes - 5 = 30

total - 7 = 42

. How many minutes is it from 23:35 today to 01:15 tomorrow?
A 100
B 110
C 120
D 130
E 140

Answers

Answer:

A (100)

Step-by-step explanation:

If 2 hours pass starting at 23:35 today, then tomorrow the time will be 1:35. The difference between 1:35 and 1:15 is 20 (minutes) Because there are 120 minutes in 2 hours (60 minutes per hour), This means we do 120 minutes minus 20 minutes. This gives us an answer is A, 100 :)

What is the median value of the data set shown on the line plot?

Enter your answer in the box.

Answers

The median would be 32 due to the xs because you must count 2 to the right every time

Answer:

Its actually 30

Step-by-step explanation:

What is the area of the square?

Answers

The answer is multiplying the height by the length which would be 16

Answer:  16

Step-by-step explanation:

All you do is count the space in between 0 and 5 and then take that number and multiply it by itself.  

help pls, teacher gave me work w no explanation on how to do it

Answers

Answer:

3x² -16x - 12

factored:

(3x + 2)(x - 6)

P - 24 = 13 step explanation

Answers

Answer:

p = 37

Step-by-step explanation:

The most important step in beginning algebra is to get all the letters on one side and and all the numbers on the other. In This case it is only all the numbers that need to be transferred.

p - 24 + 24 = 13 + 24

p = 37

The triangles shown below must be congruent. Help please

Answers

True is the correct answer

A man travels 2 miles, turn left and travels 3 miles, turn left again and travel 6 miles. How far is he from the starting point?​

Answers

Answer:

11

Step-by-step explanation:

2+3+6=11 miles

hope i helped.......

Hey guys I really need this answer asap (50 points) and branliest ty

Answers

Answer and Step-by-step explanation:

The answer is A. 67.5.

We are told the scale factor of a model train is 1 inch to 13.5 feet.

We multiply the 5 inch model car by 13.5 to get the car size.

5 times 13.5 is 67.5.

#teamtrees #PAW (Plant And Water)

Answer:

we have

1 inch :13.5ft

5in:=13.5×5=67.5ft

option A.67.5ft is a required answer.

HELP WITH THESE TWO PLEASE

Answers

the first answer is 7. the radius of a circle is always half the diameter. in the second one, the answer will be 6.

Select ALL the right triangles, given the
lengths of the sides


Answers

The right triangles are A and E

determine if the sequence is arithmetic or geometric and determine the common difference/ ratio in simplest form
3,12,21​

Answers

Answer:

Hello ♡

The answer to your question is :

2,12,21 is an arithmetic sequence with a common difference of +9 between each of them .

Step-by-step explanation:

Good luck ^^

Hope this helps u ;)


Last week, gas cost $2.50/gallon. This week, gas cost $3.20/gallon. What was in the
percent change (increase)?

Answers

Answer:

28%

Step-by-step explanation:

plz can i get brainliest;)

Please help I have the answers I just need the work and steps pls!!!

Answers

Answer:

15 cubes can fit

Step-by-step explanation:

1/4 per cube. 1 1/4 cm long

5 cubes across.

3 cubes in height

5 across times 3 = 15

The line segment shown is translated down 4 units, what are the new coordinates of B?
(0.3)

Answers

Answer:

(0, - 1 )

Step-by-step explanation:

A translation down means subtracting 4 from the y- coordinate of the point, that is

B(0, 3 ) → B'(0, 3 - 4 ) → B'(0, - 1 )

What’s the answer no work needed
Given f (x) = 5x2 and g(x) = 2x + 3, find f(g(-4))

Answers

Answer:

125

Step-by-step explanation:

Given

f(x) = 5x²

g(x) = 2x + 3

Now

g(-4) = 2 * (- 4) + 3

= - 8 + 3

= - 5

Also

f(g(-4)) = f( -5)

= 5 * ( -5)²

= 5 * 25

= 125

help if u can plz ty

Answers

Answer: -24

Explanation:
Plug in 9 for all your x’s
-3(9) + 3
Simplify and your answer is -24

Hope this helps ;)

Answer:

-24

Step-by-step explanation:

According to the Question ,

⇒ f(x) = -3x + 3 .

For finding the value at x = 9 , put x = 9 ,

⇒ f(9) = -3(9) + 3

⇒ f(9) = -27+3

⇒ f(9) = -24

Hence the value of f(9) is -24 .

An expression is given that has a value between 4.44.4 and 4.54.5, and where xx represents an integer. ​ ​ \sqrt{x}+\sqrt{x} x ​ + x ​ ​ What is the value of xx?

Answers

Answer:

[tex]x = 5[/tex]

Step-by-step explanation:

Given

[tex]\sqrt x + \sqrt x = (4.4,4.5)[/tex]

Required

Find x

When the result is 4.4, we have:

[tex]\sqrt x + \sqrt x = 4.4[/tex]

This gives:

[tex]2\sqrt x = 4.4[/tex]

Divide both sides by 2

[tex]\sqrt x = 2.2[/tex]

Square both sides

[tex]x = 2.2^2[/tex]

[tex]x = 4.84[/tex]

When the result is 4.5, we have:

[tex]\sqrt x + \sqrt x = 4.5[/tex]

[tex]2\sqrt x = 4.5\\[/tex]

Divide both sides by 2

[tex]\sqrt x = 2.25[/tex]

Square both sides

[tex]x = 2.25^2[/tex]

[tex]x = 5.0625[/tex]

So, the value of x is between 4.84 and 5.0625

i.e.

[tex]x = (4.84,5.0625)[/tex]

The only integer between the above interval is 5.

Hence:

[tex]x = 5[/tex]

PLEASE HELP ME ANSWER!

Answers

Answer:

dsg

Step-by-step explanation:

srg

Answer:

x= 110

Step-by-step explanation:

vertical angles

set up :

6x + 115 = 7x +5 (subtract 6x from both sides)

115 = x +5 (subtract 5 from both sides)

110 = x (your answer)

CHECK:

6(110) + 115 = 775

7(110) + 5 = 775

You are given that cos(A)=−45, with A in Quadrant III, and cos(B)=15/17, with B in Quadrant I. Find cos(A+B). Give your answer as a fraction.

Answers

Answer:

con you be more organized on how you post the question will answer if fixed

Step-by-step explanation:

Question 1
Construct two expressions that are equivalent to 27x^12.

I’m in a test need an answer ASAP please

Answers

One example is (3x^4)^3 and another is (3x^6)(9x^6)

QUICKKKKKKKKKK I NEED THIS ANSWER
IF WRONG REPORTED

Answers

Answer:

D

Step-by-step explanation:

PLS HELP ME WITH 7 AND 6 PLSLSLSLSLS PLS PLS I BEG U PLS

Answers

Answer: 7= D, 26 units

Step-by-step explanation:

Take the length. 0,0 to 0,9  the length is 9  Next take the width 0,9 to 4,9 the width is 4  L+Wx2 13x2=26

What ia the Lcm of 99 and 24

Answers

Step-by-step explanation:

792

........

........

........

.......

........

...

The LCM of 24 and 99 is 794

Geoff found the area of the figure.
Which expressions could he have used? Select all that apply.

Answers

Answer:

a and d

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

we can split it and find areas and plus them

Other Questions
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST Which countries have a Desert biome?MexicoChinaIrelandIndiaBrazilSaudi ArabiaUnited States I'm feeling really generous. Four runners are training for long races. Noah ran 5.123 miles, Andre ran 6.34 miles, Jada ran 7.1 miles, and Diego ran 8 miles.a. What is the total running distance of the four runners? b. Jada ran how much farther than Noah? PSMike has attempted 84 free throws. Of those attempted,63 have gone in the basket. Based on this rate, what is theprobability that Mike's next free throw attempt will go inthe basket? For each of the following situations, use complete sentences to write a paragraph about how you as a photographer should act, keeping both etiquette and laws in mind.You are photographing on a busy street. You are taking a variety of pictures, including photographs with people in them. What should you do?You are photographing in a park. You notice that the backyard next to the park may have some interesting photograph possibilities. What should you do?You are on vacation and see an old man sitting by the sea. You think this would make a great photograph. What should you do?You are visiting a museum, and you want to take some photographs inside it. What should you do?You have a photograph that youd like to sell. What should you do? Are the triangles similar? If someone has a heritable trait, they might pass it to their offspring.true or false ? Why did the United States enter World War II?A) American leaders feared that Iraq's dictator was hiding weapons of mass destruction.B) The United States was attacked at Pearl Harbor, Hawaii, by Japan.C) Germany had unleashed unrestricted submarine warfare against the American merchant ships.D) The United States came to the defense of its ally, The Soviet Union. Evaluate the following expression 6 ^-3 how is money important than education _______ is the amount of space________ a two-dimensional shape. It can be measured in units such as_______ or _________ What is the unknown angle measure in an equilateral triangle that has two angles of 60 degrees each? What is the surface area of the square pyramid Suppose you are planning a trip in which a spacecraft is to travel at a constant velocity for exactly six months, as measured by a clock on board the spacecraft, and then return home at the same speed. Upon return, the people on earth will have advanced exactly 90 years into the future. According to special relativity, how fast must you travel This is my last assignment, pls help16 minutes= 6 bushes trimmedhow many minutes would it take for 30 bushes to be trimmed? 4. Three of the functions of the brain include thinking, signaling and behavior. Can someone help me with this one. Is it ABC or D which answer is right ? Two way to belong in America contrast about mira