Mathematics High School


Solve the linear equation x + 4 + 3x = 72. State the property that justifies your first step and why you chose it

Please Help!!!!!!!!!

Answers

Answer 1

Answer:

x=17

Step-by-step explanation:

x+4+3x=72

4x+4-4=72-4

4x/4=68/4

x=17

Associative property of addition

Answer 2

Answer: x  =  17

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Related Questions

Chris spent half of his money on a pair of headphones. Then he spent half of his remaining money on CDs. Finally, he spent his remaining $13.00 on a book.

Answers

Answer:

52

Step-by-step explanation:

you just have to take the 13 and work backwards, so double it to get 26 and then double 26 and youll get 52:)

If varies inversely as . It is known that = 10 when = 3, find the value of when = 5.

Answers

Answer:

y = 6

Step-by-step explanation:

If x varies inversely proportional as y.

[tex]x=\dfrac{k}{y}[/tex], k is constant of proportionality

or

k = xy

When x = 3 and y = 10

k = 3×10

k = 30

Put x = 5,

[tex]y=\dfrac{k}{x}\\\\y=\dfrac{30}{5}\\\\y=6[/tex]

So, the value of y is 6 when x is 5.

Please help!!
Will mark brainliest

Answers

y=-2x+4.

-2 being m or the slope which you can count on the line -2/1
+4 being the y-intercept or b
answer
y=-2x+4
slope is -2
y= 4


A house purchased for $220000 has it's value grow at a constant rate of 4%. Determine the approximate
value of the house 5 years after purchase

Answers

Answer:

the answer is 264000.....

Answer:

264,000

Step-by-step explanation:

4% of 220000 is 8800

8800 x 5 = 44000

220000 + 44000 = 264000

Find the distance from E to F

Answers

Answer/Step-by-step explanation:

To find the distance of E to F, subtract the distance of DE from the total.

28 - 11 = 17

EF = 17

Write the equation of the line that is parallel to y+2=5(x-1) and passes through the point (-1, 0) .
( 50 points )

Answers

Answer: y=2x-3

Step-by-step explanation: I looked it up.

what is 2^2 pls help me

Answers

Answer:

That'd be 4 :)

Step-by-step explanation:

What is the slope of the line?

Answers

5/8 nxnznsn Josh’s said McManus McDonald’s 789 week

2/3

i dont know how to explain it all i learned was rise over run (rise/run) just like y/x but its easier to rmrmber

Your teacher is giving you a test that has 30 questions and is worth 200 points. Some questions are worth 5 points and some are worth 10 points. How many of each question are on the test?

Answers

Answer:

20 5-point questions and 10 10-point questions

Step-by-step explanation:

The ____ Is the distance around a circle.
area
radius
diameter
circumference​

Answers

Answer: circumference

Step-by-step explanation:

Answer:

circumference

Step-by-step explanation:

N/A

x – 3y 32
Does this inequality have a solid or dashed boundary line?

Answers

Step-by-step explanation:

It doesn't have neither the greater than or equal to or less than or equal to signs so

34=16+x helpppppp please due in 30 minutes

Answers

Answer:

34-16=18

so x = 18

Step-by-step explanation:

Answer:

x = 18

Step-by-step explanation:

Subtract 16 from both sides to get x by itself. 34 - 16 = 18. 18 = x

Write the equation of a rational function with a slant asymptote at y=2x+1 and vertical asymptote at x=0

Answers

Answer:

Please give me brainliest if i tell you the answer

Step-by-step explanation:

Under his cell phone plan, Noah pays a flat cost of $66.50 per month and $4 per gigabyte. He wants to keep his bill under $80 per month. Which inequality can be used to determine gg, the maximum number of gigabytes Noah can use while staying within his budget?

Answers

Answer: gg < 3.375

Step-by-step explanation:

From the question, we are informed that Noah pays a flat cost of $66.50 per month and $4 per gigabyte and that he wants to keep his bill under $80 per month.

The inequality that can be used to determine gg, the maximum number of gigabytes Noah can use while staying within his budget will be:

66.50 + 4gg < 80

4gg < 80 - 66.50

4gg < 13.50

gg < 13.50/4

gg < 3.375

HURRY
1/12 is the same as 1÷12. What is the exact quotient in decimal form of 1÷12?

Answers

Answer: Yes 1/12 is the same as 1 ÷ 12

decimal form is 0.083333333333333333(3 is repeating)

Step-by-step explanation:

Answer:

0.08333333333

Step-by-step explanation: since i helped can i have brainlist please :D

i really need help.......

Answers

A had it before good luck

Answer:

it will option B hope it helps

What is the diameter of the circle 18in?​

Answers

56.57 that’s the answer

Pls help!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

16x - 9 is the expression

Step-by-step explanation:

2x + 2x = 4x co effecients with the same variables can be added then I multiplied 4x by 4x which would 16x then later got the expression (16x - 9).

16x-9 is the correct answer

PLZ ANSWER QUICK IT WILL HELP A LOT!

Answers

Answer:

a

Step-by-step explanation:

The point (-6,-2) is located in quadrant

Answers

Step-by-step explanation:

The point is located in the second quadrant because x is negative and y is positive.

Answer:

Quadrant 3

Step-by-step explanation:

If 7x−7y=4 is a true equation, what would be the value of
5(7x−7y)

Answers

Answer:

20

Step-by-step explanation:

Since that is a true equation, you can substitute 7x - 7 y for 4 and simplify.

5(7x - 7y)

5(4)

20

someone help me with this please

Answers

Answer:

Reciprocal

Multiplicative inverse

Additive inverse

Reciprocal is the answer lol

simplify: 5w(1-8h)+12hw+5w+3-w

Answers

Answer:

−28hw+9w+3

Step-by-step explanation:

5w(1-8h) = 5w-40wh

+12wh = -28hw

-28hw+5w+5w = -28hw+10w

-w = -28hw+9w

+3 = -28hw+9w+3

u minus 197 equals 269

Answers

Answer:

466

Step-by-step explanation:

(as 'u' i think you mean a variable)

do the inverse operation,

269 + 197 = u

466 = u

answer is 466

466-197=269

what is the area of the house type shape outlined in blue this is a maths test could u please show working if u can answer it bc we must show working plz I could rly use the help

Answers

Answer:

[tex]110.5^{2}[/tex]

Step-by-step explanation:

first lets devide this into two like lets make it a rectangle and a triangle. so the area for the rectriangle is 5 x 13 = 65.

then the the area of the triangle is 7 x 13 divide by 2 = 45.5

i got the seven as height is when i substract 5 from 12

so now add both 65 + 45.5 = 110.5

HELP PLEASE

Which graph best represents the equation y= 2x

Answers

Answer:

The answer is H.

Step-by-step explanation:

There is no "b" in this y = mx + b, so it has to go through zero, eliminating the bottom two. If we insert y = 2(1), the point should be at (1, 2), and if when looking at the possible answers, we can go with letter H.

PLEASE HELP!!!!!!!!!!

Answers

Answer:

3

Step-by-step explanation:

what is a factor for -20?​

Answers

Answer:

1 ,2,4,5,10,-1,-2,-4,-5,-10,20

Answer:

factors are 2 and 5.

Step-by-step explanation:

Factors are numbers which you can multiply together to get another number. For Example : The numbers 2 and 3 are factors of 6 because 2 x 3 = 6. A number can have many factors! Example : 2 and 4 are factors of 8, because 4 x 2 = 8. Also 1 and 8 can also be factors of 8, because 1 x 8 = 8.

on prime factorization, we get the factors of 20 as,

2 x 2 x 5 = 20.

Essentially, to factor a negative number, find all of its positive factors, then duplicate them and write a negative sign in front of the duplicates. For instance, the positive factors of −3 are 1 and 3.

-2 x 2 x 5 = -20

2 x 2 x -5 = -20

Im so not good at algebra

Answers

Answer:

No it is not

Step-by-step explanation:

You can tell if points can form a function if they have the same x value. If any 2 points have the same x value (The first value in the parenthesis before the comma), they cannot be a function.

Plsssss helpppppppppp meeeeeeeeee

Answers

Answer:

x = 14, y = 37

Step-by-step explanation:

The angle vertical to (9x + 12 )° and 3x are same- side interior angles and are supplementary, sum to 180°, then

9x + 12 + 3x = 180

12x + 12 = 180 ( subtract 12 from both sides )

12x = 168 ( divide both sides by 12 )

x = 14, so

3x = 3 × 14 = 42

3x and 4y - 10 are adjacent angles and supplementary, then

3x + 4y - 10 = 180

42 + 4y - 10 = 180

4y + 32 = 180 ( subtract 32 from both sides )

4y = 148 ( divide both sides by 4 )

y = 37

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