Given:15y+7=12-20y prove:y=1/7 (I just need the prove thanks)

Answers

Answer 1

Answer:

15y+7=12-20y (add 20y to both sides)

35y+7=12 (minus 7 from both sides)

35y = 5 (divide both sides by 35) (5/35=1/7)

y= 1/7

Answer 2

Answer:

64/7 = 64/7 yes y = 1/7

Step-by-step explanation:

To prove this we simply have to plug in!

15(1/7) + 7 = 12 - 20(1/7) (simplify)

15/7 + 7 = 12 - 20/7 (simplify further)

64/7 = 64/7

So yes y = 1/7


Related Questions

A right triangle has leg lengths of 3.4 cm and 6.7 cm. Which answer below shows the length of the triangle’s hypotenuse rounded to the nearest tenth? A. 8.5 cm B. 7.5 cm C. 5.5 cm D. none of the above

Answers

Answer:

The answer is B

Step-by-step explanation:

6
Estimate each percent.
70% of 103
(1 Point)
Enter your answer



Will make Brainlylist

Answers

Answer:72.1

103*.7=72.1

I hope this is good enough:

plz help solve this. i need the answer asap

Answers

Answer:

6 cups per month

Step-by-step explanation:

divide 72 by 12

6cups per month divid

how can I find the slope to this I need help​

Answers

Answer:

Your slope is -1

Step-by-step explanation:

Find the change in x and the change in y and put it in change in y over change in x.

Δx = -1 - -2 = 1

Δy = -1 - 0 = -1

Slope = rise over run = Change in y over change in x =  Δy/Δx = -1/1

Therefore the slope is -1/1 which is written as just -1

Write 0.15 as a fraction in simplest

Answers

Answer: 3/20 also known as 15%  Hope this helps Have a great night

Step-by-step explanation:

You only have to answer 7,8 but if you want you can do 9 and 10

Answers

Answer:

#7) x = 3

#8) x = 9

Step-by-step explanation:

# 7

Well AOB + BOC = AOC so...

4x - 1 + 2x + 15 = 8x + 8 (collect like terms)

6x + 14 = 8x + 8 (subtract 8 on each side)

6x + 6 = 8x (subtract 6x on both sides)

6 = 2x (divide by 2 on both sides)

3 = x

#8

COD + BOC = BOD so..

8x + 13 + 3x - 10 = 12x - 6 (collect like terms)

11x + 3 = 12x - 6 (add 6 on both sides)

11x + 9 = 12x (subtract 11x on both sides)

9 = x

Hope this helps!!

please help so I can pass

Answers

your answer would be F.

For f(x) = 3x2 - 2, find F(x) =
f(x)dx

Answers

Answer: below

Step-by-step explanation: Given f(x) =kxn where k is a constant, then f'(x) = nkx(n - 1)

Can you apply this principle to this problem, Let me know if you have any further questions about this problem. Thanks.

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ldodiifqbsnzifkflxkx

do all of the digits in 8.88 have the same value? and explain why.

Answers

Answer:

No

Step-by-step explanation:

Mitochondria is the powerhouse of the cell

Describe the topics in this unit in your own words by explaining FIVE of the vocabulary words/phrases below. You will receive twenty points for each of the vocabulary words or phrases that are correctly used to describe the unit. The vocabulary words must be used to explain the content in this unit. Use complete sentences.

Vocabulary Words/Phrases: Midpoint Formula, Distance Formula, Slope of Parallel Lines, Perpendicular Slope, Composite Figure, Perimeter, Area, Area of a Rectangle, Area of a Triangle, Area of a Kite, Area of a Regular Polygon, Apothem, Equation of a Circle, Center of a Circle, Radius of a Circle

Answers

Answer:

Too much

Step-by-step explanation:

Too much

PLS HELP I GIVE BRAINLIEST

Answers

It's 360.00 it's the right answer trust me

Please help. It’s due today

Answers

Answer:

There's nothing there I believe you forgot to add a link just add or create another question and i'll see what I can do :)

Step-by-step explanation:

There is no question there

GUYS PLEASE HELP ME ive been struggling with this for the past 15 minutes

Answers

Answer:

Loading Answer...

Step-by-step explanation:

Loading Explanation...

What is an equation in slope-intercept form for the line that passes through the points (1,-3) and (3,1)

Answers

Step-by-step explanation:

Hey there!

Note: Use double point formula for finding the eqaution which passes through two points.

Given;

The points are; (1,-3) and (3,1).

Use double point formula.

[tex](y - y1) = \frac{y2 - y1}{x2 - x2} (y - y1)[/tex]

Put all values.

[tex](y + 3) = \frac{1 + 3}{3 - 1} (x - 1)[/tex]

Simplify it.

[tex](y + 3) = \frac{4}{2} (x - 1)[/tex]

[tex]y + 3 = 2(x - 1)[/tex]

[tex]y + 3 = 2x - 2[/tex]

[tex]y = 2x - 2 - 3[/tex]

[tex]y = 2x - 5[/tex]

Therefore, the eqaution is y = 2x-5.

Alternative:

Steps:

Find slope using slope formula and use one point formula.Simplify in the form of y = mx+c form.

Formula:

Slope = (y2-y1)/(x2-x1)One point formula= (y-y1)= m(x-x1)

The points are; (1,-3) and (3,1).

Now;

Slope= (1- (-3))/(3-1)

= (1+3)/2

= 2

Again;

Using one-point formula.

(y+3) = 2(x-1)

y+3= 2x-2

y = 2x -5

Therefore, the equation is y = 2x-5.

(You can follow up any method you want)

Hope it helps....

YOOOO HELP ME ASAP DUDED BY MIDNIGHT BRO
How do you find the value of x please help me( Look at the picture provived)

Answers

Answer:

x=5

Step-by-step explanation:

We know that a pentagon is in total 540 degrees. From this, we add all other numbers and set them equal to 540 to solve for x.

So, after adding all the angles and setting them equal to 540, we get this.

21x+435=540

21x=105

x= 5

If you want, plug 5 into x and see if it adds up to 540 to check

21(5)+435=540

-2 1/2 divided by 3 1/2 ?

Answers

Step-by-step explanation:

[tex] - 2 \times \frac{1}{2} \div 3 \times \frac{1}{2 } \\ - \frac{5}{2} \div \frac{7}{2} \\ - \frac{5}{2} \times \frac{2}{7} \\ = - \frac{5}{7} [/tex]

need help finding the slope line through each apartment of points ​

Answers

Answer:

how are yall so smart bc im sittin over here like bruh these guys are smarter than enistain

Step-by-step explanation:

Answer:

8/-11

Step-by-step explanation:

m=y2-y1/x2-x1

16-8=8

9-20=(-11)

8/-11

hope this helps :3

if it did pls mark brainliest

Check

Your Understanding

Marcos deposited $500 into a 2.5-year simple interest account. He wants to earn $50 interest. What interest rate must the account pay?

Answers

The account must pay a 40 percent interest rate under Marcos.

A basic interest account is what?

A loan's or deposit's initial principal serves as the foundation for simple interest.

Contrarily, compound interest is calculated based on both the principal amount and the interest that is accrued on it each period.

Simple interest is simpler to compute than compound interest because it is just applied to the principal.

based on the information provided,

500+x=200

x=200/500

x=40

to know more about Interest visit;

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The hardcover version of a book weighs 7 ounces while its paperback version weighs 5 ounces. Forty-five copies of the book weigh a total of 249 ounces.

A table titled Weight of Books showing Number of Books, Weight per book in ounces, and Total Weight in ounces. The first row shows Hard Cover, with h, 7, and 7 h. The second row shows Paperback, with 45 minus h, 5, and x. The third row shows Total, with 45, blank, and 249.
Which value could replace x in the table?

40 – h
50 – h
5(45) – h
5(45 – h)

Answers

Answer:

The Correct answer is D.) 5(45 – h)

Step-by-step explanation:

x can be replaced by 5(45 - h)

Tap the THANKS button and RATE ⭐️

Answer:

its d

Step-by-step explanation:

just took the quiz

Marie gets paid $ 2,000 monthly and a commission of 50 dollars for each sale she makes. Write an expression that represents her salary.

Answers

Answer:

2000+(50× x)

Step-by-step explanation:

The certain salary is 2000 but we do not know how much sale where made so the amount is placed as x inwhich will be multiples by 50 then added to 2000 to get total

Rewrite in simplest terms: 9(-6r – 3) + 2(r +9)

Answers

Answer:

I think its 'r= 15/7=0.467'

Step-by-step explanation:

78 is 0.6% of what number? Use pencil and paper. Would you expect the
answer to be a lot less than 78, slightly less than 78, slightly greater than 78, or
a lot greater than 78? Explain.
78 is 0.6% of
(Type an integer or a decimal.)

Answers

Answer:

Answer is

13000

Step-by-step explanation:

78÷0.6%=13000

PLS HELP FIND ANGLE MEASUREMENTS

Answers

Answer:

From my observations, AOB looks like an isosceles triangle, so A=18 and B=18. Since a triangle must add up to 180. We do 180-18-18=144. O= 144. Then, triangle BOC looks like an isosceles triangle as well. So, we do 180-144= 36 so O = 36 and then we 180-36=144/2 because two sides have the same angles giving us 72 degrees for angles B and C = 72 and for O= 36

So,

x = 72

y = 36

Work out the length x pls ​

Answers

Answer:

~17.67

Step-by-step explanation:

Pythagorean theorem

a^2+b^2=c^2

7.5^2+16^2=c^2

~17.67

Answer:

Step-by-step explanation:

We use pythagorus theorem which is; a²+b²=c²

(16cm)²+(75/10cm)²=x²

256cm²+225/4cm²=x²

1249/4cm²=x²

√1249/4cm²=√x²

312.25cm=x

If Mis a centroid of triangle WOR and WM = 16, what is WX?

8
24
10
32

Answers

Answer:

WX = 24

Step-by-step explanation:

Centroid of a triangle divides the medians of the triangle in the ratio 2 : 1

Therefore,

WM/ MX = 2/1

16/MX = 2/1

2MX = 16

MX = 16/2

MX = 8

WX = WM + MX

WX = 16 + 8

WX = 24

The value of the side WX  is equal to 24. The correct option is B.

What is the centroid of the triangle?

The center of the thing is represented by its centroid. The centroid of a triangle is the location where the triangle's three medians intersect. It can alternatively be described as the location where the three medians come together.

A line connecting a side's midpoint and the triangle's opposite vertex is called the median. Triangle is a shape made of three sides in a two-dimensional plane. the sum of the three angles is 180 degrees.

The centroid of a triangle divides the medians of the triangle in the ratio of 2: 1.

Here, the ratio of the two sides will be given as:-

WM/ MX = 2/1

Calculate the value of MX to get the value of WX.

16/MX = 2/1

2MX = 16

MX = 16/2

MX = 8

The value of WX will be:-

WX = WM + MX

WX = 16 + 8

WX = 24

Therefore, the value of the side WX  is equal to 24.

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use a single digit times a power of 10 to estimate the number 0.00007264

Answers

Answer:

0.0007264

Step-by-step explanation:

I think it is right but if not I am so sorry! Hope this helps!

5) Use any 2 of these integers: -1, -2, -5, -3, and +4.
a) Which 2 integers make the mathematically smallest number when multiplied together?
(for example, the answer - 8 is smaller than +2)?



b) Which 2 integers make the greatest sum (when they are added together)?

Answers

Answer:

a) -5 and 4 make the mathematically smallest number when multiplied together

b) 4 and -5 make the greatest sum

Step-by-step explanation:

-5 x 4 = -20

-3 x 4 = -12

-2 x 4 = -8

-1 x 4 = -4

-1 + -5 = -6

-2 + -5 = -7

-3 + -5 = -8

4 + -5 = -1

Help needed. Only 1-5 is needed help on plz and ty

Answers

Answer:

number 5 is y= 3    7-3=4x4=16

Step-by-step explanation:

rite an equation of the line with a slope of 3 and a y-intercept of 4.5.

Answers

Answer:

y = 3x+4.5

Step-by-step explanation:

1.
Susan has five blocks of candy. She wantsstwo ciwe chook into -size pieces of
candy. How many pieces of candy willstrebe anettonale?

Answers

B) I can’t read this.
This is the weirdest thing I’ve ever seen
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