Mathematics High School

Solve each linear equation for x. (A) –12x + 9 = –15x x = (B) 4.5x + 11.5 = 8.5x + 3.5 x = (C) 23x – 9 = 13x x =

Answers

Answer 1

Answer:

A. x = -3

B. x = 2

C. x = 9/10

Step-by-step explanation:

(A) –12x + 9 = –15x

Collect like terms

9 = -15x + 12x

9 = -3x

x = 9 / -3

x = -3

(B) 4.5x + 11.5 = 8.5x + 3.5

4.5x - 8.5x = 3.5 - 11.5

-4x = -8

x = -8 / -4

x = 2

(C) 23x – 9 = 13x

-9 = 13x - 23x

-9 = -10x

x = -9 / -10

x = 9/10

Answer 2

Answer:

A) x= -3

B) x = -2

C) x = 27

Explanation: I did the lesson

Related Questions

need help on b already done a

Answers

5+9+2=16 students finished in under 20 minutes, and there are 24 total.

16/24=2/3 or 66.67%

When you isolate the variable, the goal is to get the variable
А
to equal 1.
B
on both sides of the equal sign to show they are equal.
by itself on one side of the equal sign and a value on the other.
D
by itself on one side of the equal sign and zero on the other side.

Answers

Answer:

answer is c.

Step-by-step explanation:

for example:

y=77

I hope it's helpful!

C! If you have an equation like 7(x)=14, then you would divide both side by 7 leaving x = 2, which you would check by plugging 2 for x. So it would look like 7(2)=14

Hope it helped!!

What is this number in standard form?

(8×10)+(2×1100)+(9×11,000)

Enter your answer in the box.

Answers

Answer:

101280 is the answer

Step-by-step explanation:

2
하
Number one over5+ 2/5 =

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1/5 + 2/5

Add the numerals because the denominator is the same.

= 3/5

4/5 divided by 2/3
uhm this is to short soooo

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Answer:

6/5

Step-by-step explanation:

please help
Thanks in advance

Answers

x=5.29 so the answer would be c

Expand and simplify the following
1
2(4x - 3) + 5x + 4

Answers

The answer to this equation is 13x-2

what is equivalent to 3x-12=24

Answers

Answer:

12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

3x equals 36

x equals 12

what would a 64 ring size be in the US THANKSSSS​

Answers

Answer:

10.75 would be a 64 ring size in the US

please help sorry if blurry

Answers

Answer:

you're correct...

Step-by-step explanation:

b. Suppose Q is the midpoint of PR. What is the
justification for the statement that PQ = QR?

Answers

the midpoint bisects PR, making it 2 equal halves.

Put the following equation of a line into slop-intercept form, simplifying all fractions.
2y - x = -8

Answers

y=1/2x-4
First, you use the inverse operation to add x to -x
2y-x=-8
+x +x
—————
2y=x-8
Next you divide 2 by both sides of the equation
2/2y=x-8/2
The twos on the left side of the equation cancel out and you simplify the rest of the problem...
y=x/2-4

18. Find the measure of angle STP.

Answers

Answer:

x=7

Step-by-step explanation:

∠STP=∠SWT+∠TSW(exterrior ∠ of Δ)

15x=7x+1+7x+6

x=7

Can i pls have help with is soooooooooo confused

Answers

500.

Solution:  210 is 42% of X  

Equation: Y = P% * X  

Solving our equation for X

X = Y/P%

X = 210/42%  

Converting percent to decimal:

p = 42%/100 = 0.42  

X = 210/0.42  

X = 500

I want to know if 1/324 is equal to -324, and why.

Answers

Answer:

It’s not

Step-by-step explanation:

1/324 is betwen 1 and 0, -324 is 324 numbers below zero

Eric is sewing a border around a rectangular quilt. The quilt measures 5 feet by 7 feet. How much border material should Eric buy?

Answers

Well 5x7=35 so I would think 35 feet

Mr. Nelson paid $3.84 sales tax. He paid a sales tax rate of 8%. How much was the item he
was buying before sales tax was added?

Answers

I slept with yo mama and she got the wap

help me pleaseee i need help

Answers

Answer:

1/2

Step-by-step explanation:

You start by taking 3/4 and turning it into 6/8 so you can add it to the 3/8 which equals 9/8. 9/8-5/8 is equal to 4/8. Simplify it and you have 1/2

4/6+3
Pls help plsssss
68 points

Answers

I think it equals 3 and 4/6

4/6 can be simplified to 2/3

Now add to 3 to get final answer

3 2/3

Name two lines in the diagram. Four horizontal lines are shown. At the top is line upper M upper A. Next is line upper L upper B. Next is line upper K upper C. At the bottom is line upper J upper D. Two transversals cut through these lines. One passes through points upper M, upper L, upper K, and upper J. The other passes through points upper A, upper B, upper C, and upper D.The transversal on the left crosses the top horizontal line at point Upper M, the horizontal line second from the top at point Upper L, the horizontal line third from the top at point Upper K, and the bottom horizontal line at point Upper J. The transversal on the right crosses the top horizontal line at point Upper A, the horizontal line second from the top at point Upper B, the horizontal line third from the top at point Upper C, and the bottom horizontal line at point Upper D.
A. modifying above upper J upper K with bar, modifying above upper L upper B with bar
B. modifying above upper M upper A with one-way arrow, modifying above upper J upper D with one-way arrow
C. modifying above upper K upper C with two-way arrow, modifying above upper D upper A with two-way arrow
D. modifying above upper M upper J with two-way arrow, modifying above upper E upper F with two-way arrow

Answers

Answer:

C. KC DA

Step-by-step explanation:

KC is across each other and DA is up and down from each other.

Hope this helps :)

Which list shows the fractions in order from greatest to least? will mark brainliest !!
pleas help ​

Answers

Answer:

B) 2/3, 1/2, 2/5

In a fruit punch drink, the 3 ingredients are apple juice, orange juice and cranberry juice. If 3/4 of the drink is apple juice and 1/10 is orange juice then write the ratio of cranberry juice to apple juice to orange juice in its simplest form

Answers

Step-by-step explanation:

Let's assume x = apple juice, y = orange juice, and z = cranberry juice

[tex]1 = x + y + z \\ 1 = \frac{3}{4} + \frac{1}{10} + z \\ z = 1 - \frac{3}{4} - \frac{1}{10} \\ z = \frac{3}{20} [/tex]

x : y : z = 3/4 : 1/10 : 3/20

If we were to make them all in the same denominator, x : y : z = 15/20 : 2/20 : 3/20.

[tex] \frac{3}{4} \times \frac{5}{5} = \frac{15}{20} \\ \\ \frac{1}{10} \times \frac{2}{2} = \frac{2}{20}[/tex]

What is the factored form of x2 – x – 2?

(x – 2)(x + 1)
(x + 2)(x + 1)
(x – 2)(x – 1)
(x + 2)(x – 1)

Answers

(X-2)(x+1)

The first one












the first answer is correct
(x-2)(x+1)

if Maya drove 30 laps in six minutes how many laps did she drive in one minute

Answers

Answer:

5 laps in one minute.

Step-by-step explanation:

1. Divide 30, the number of laps, by 6, the number of minutes. So, for every 1 minute Maya drives on lap.

A pet store has 8 dogs, 12 cats, and 3 rabbits. The ratio 8:23 compares

Answers

Answer:

Step-by-step explanation:

the number of dogs to the number of total numbers.

8 dogs: 23 total animals.

means 8 of the 23 animals are dogs.

The ratio 8:23 represents 8 dogs out of total 23 animals.

What is Ratio?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

Here, Total number of animals = 8 + 12 + 3

                                                   = 23 animals

Ratio given = 8 : 23

in which 8 represents the number of dogs and 23 represents total number of animals.

Thus, The ratio 8:23 represents 8 dogs out of total 23 animals.

Learn more about Ratio from:

https://brainly.com/question/13419413

#SPJ2

81% of___ is 405
Pls help

Answers

Of means multiplication and Is means equals. So 0.81x =405
X = 500

Answer:

500 x 81% = 405

Step-by-step explanation:

what is the value of p?

Answers

Answer:94°

Step-by-step explanation:

The sum of the interior angles of the polygon: 180°(n-2)

180°(5-2)=540°

The sum of the interior angles of the pentagon is 540°

So:

P+Q+R+S+T=540°

(4x+2)°+132°+(4x-10)°+(5x-11)°+128°=540°

4x+2+4x-10+5x-11+260=540

13x=299

x=23°

P=4x+2°=4×23°+2°=94°

i need le help...if u have 25 pieces of gum and you got 7 more pieces then subtracted 3 and added 16 what would it equal Im to tired and my brain hurts from the test to figure it out

Answers

Answer:

45

Step-by-step explanation:

25 plus 7 is 32

32 minus 3 is 29

29 plus 16 is 45

hmmm well that's a  lil too hard for my smol brain to process but hmmm well when I think about it, it really gets my brain thinking and ummm well you see it's uh hmm you add the yeah to that and hmmmm well ahhh that looks to be about right uuuuuuuuuh

45....

.....or is it?

hmmmmmmmmmmmmmmm

Hey guys help ASAP!! Algebra 1 question

Answers

I think f(x)=ex I’m not sure

pls help me ❤️ it would be amazing

Answers

Answer:

A)  2x²y³[tex]\sqrt{7xy^2}[/tex]

Step-by-step explanation:

[tex]\sqrt[3]{56x^7y^5}[/tex] = [tex]\sqrt[3]{(2^3)(7)(x^3)(x^3)(x)(y^3)(y^2)}[/tex]   anything inside the radical raised to

                                                                 the third power can be removed to

                                                                  the outside of the radical

= 2(x)(x)(y) · [tex]\sqrt[3]{(7)(x)(y^2)}[/tex]

= 2x²y·[tex]\sqrt[3]{(7)(x)(y^2)}[/tex]

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