Mathematics High School

Do these ratios form a proportion 12/16 and 15/20

Answers

Answer 1

Answer:

This is a proportion

Step-by-step explanation:

Cross multiply:

12 * 20 = 16 * 15

Simplifying:

12 * 20 = 16 * 15

Multiply 12 * 20

240 = 16 * 15

Multiply 16 * 15

240 = 240

Add '-240' to each side of the equation.

240 + -240 = 240 + -240

Combine like terms: 240 + -240 = 0

0 = 240 + -240

Combine like terms: 240 + -240 = 0

0 = 0

Solving

0 = 0

Related Questions

Solve the following system of equations. 4x = 15y 17 + y = -13​

Answers

here ya go!!! i hope this helps! i did it via substitution

when solving a linear system by substitution, how do you decide which variable to solve first?

Answers

Answer: whichever one is easiest to get by itself.

Step-by-step explanation:

Which holiday showed greater variability in the
data?

Answers

Answer:

christmas

Step-by-step explanation:

Samantha invested $880 in an account paying an interest rate of 3.1% compounded
continuously. Assuming no deposits or withdrawals are made, how long would it
take, to the nearest tenth of a year, for the value of the account to reach $1,270?

Answers

Answer: 11.8

Step-by-step explanation:

This is due today!! Brainliest to whoever answers it correctly.

Answers

Answer:

First you need to plot points then add the points

Step-by-step explanation:

Answer: plot the points and add them up

What is the value of x?

Enter your answer in the box

x=

Answers

Answer:

the answer is 10

Step-by-step explanation:

crown if helps

5. What additional information would allow you to conclude
that WXYZ is a parallelogram?
A. XY ZW
C. WY ZW
B. XW ZY
D. ZXWY ZZYW
LOL HEY PLS HELP

Answers

Answer:

option c is the correct answer I am guessing

Please help whats the error ​

Answers

Answer:

x=20°

Step-by-step explanation:

5x°=100° ----because they are vertically opposite angles

x=100/5

x=20°

Help me please!
If you get it right, I’ll will brainliest u!!

Answers

Answer:

Angle S is a straight angle.

Step-by-step explanation:

180° is a straight line.

Calculate the area of the shape below.

Answers

Answer:

il say its B

Step-by-step explanation:

Answer:

zfsdfsdf

Step-by-step explanation:

dfsdfsf

Sum of two numbers is 29 and one number exceeds another by 5. Find the numbers.​

Answers

Answer:

24 is the answer

Step-by-step explanation:

* 29-5=24

* 24+5=29

First number = 12
Second number = 17

x + x + 5 = 29
2x + 5 = 29
2x = 24
x = 12

So, one number is 12 and the other one is 12 + 5 = 17
17 is greater than 12 by 5
12 + 17 = 29

Find the slope and the y-intercept of the graph of y+1=4/3x.
What is the slope and the y-intercept?

Answers

Answer:

Slope = 4/3x; y-intercept = -1

Step-by-step explanation:

y + 1 = 4/3x

You have to write this equation in slope-intercept form (solve for y) if you want to find the slope and y-intercept

y + 1 = 4/3x

Subtract one from both sides

y + 1 - 1 = 4/3x - 1

y = 4/3x - 1

Now that we have the equation, you can now find the slope and y-intercept

y = mx + b; m is the slope and b is the y-intercept

So for y = 4/3x - 1, the slope is 4/3x and the y-intercept is -1

what would 4xy + 6y be? factoring and its not what i thought the answer was fdkjdfnds

Answers

LOL the answer is 10xy

Answer:

10xy^2

Step-by-step explanation:

Collecting like terms, 6+4=10 and the two y's will make y^2

(DONT ANSWER UNLESS UR IN MY FRIEND GROUP AND WANT ALOT OF NOTIFS)
Solve: 23x-44+45/23

Answers

Answer:

69

Step-by-step explanation:

the answer is 69 bc it is correct

Please help
Thank you
Do step by step plz

Answers

Answer:

9 divided by thirteen.

Step-by-step explanation:

we know that the fraction symbol that appears between the numerator and the denominator (the ___ line) represents division. So, we could say that 9 over 13 is 9 divided by thirteen.

9 divide by 13 or 9/13

please please help asap :)

Answers

Answer:

12

Step-by-step explanation:

to get from 3 to 6, 3 is multiplied by two

multiply the 4 by two to give you 8

line WY = 8

X = 8 + 4

X = 12

Can someone help me please

Answers

Answer:55

Step-by-step explanation:

Help please... I need help

Answers

Step-by-step explanation:

3x = 12 - 18

3x = (- 6)

X = (-6)/3

x = (-3)

solve using multiplication algorithm vertical
72x43

Answers

Answer:

3096?

Step-by-step explanation:

I don't know what that method is, sorry.

But 3096 is 72*43 the normal way.

Help please I don't get how to do this

Answers

Answer:

15:5 = 18:6 = 21:7

The scale factor is 1/3 or 0.33.

Step-by-step explanation:

Jonah had 3/4 cup of water in his cup. He drank 1/2 cup of water. How
much water did he have left?

Answers

Answer:

1/4th Cup left

Step-by-step explanation:

1/2 cup is equal to 2/4 cup, so subtract that from 3/4th and you end with 1/4th

-4x+5 + -13x+39=180 angle measure

Answers

Step-by-step explanation:

−4x+5−13x+39=180

Step 1: Simplify both sides of the equation.

−4x+5−13x+39=180

−4x+5+−13x+39=180

(−4x+−13x)+(5+39)=180(Combine Like Terms)

−17x+44=180

−17x+44=180

Step 2: Subtract 44 from both sides.

−17x+44−44=180−44

−17x=136

Step 3: Divide both sides by -17.−17x

−17

=

136

−17

x=−8

Answer:

x=−8

Simplify the expression:
5a - b + 1/2c where a = 2, b = 3, and c = 12

Answers

Answer:

10a - 3b +6c

Step-by-step explanation:

What 3.8in nearest tenth

Answers

Answer:

3.8

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Since the tenths place is where the 8 is 8 is over 5 and is closest to ten

Lauren rides her bike 36 miles in 4 hours. How many feet is Lauren traveling each minute?

Answers

Answer:

786 feet per min

Step-by-step explanation:

60 (mins in an hour) x 4= 240 mins

there are 5240 feet in a mile

5240 (feet in a mile) x 36= 188640

188640 divided by 240= 768

"792 feet per second" is the correct answer36 ÷ 4 = 9mph5,280 x 9 = 47,520fph47,520 ÷ 60 = 792fpsPlease let me know if I am wrong.

Factor the following expression.
12 vx?y9 + 18V3x6

Answers

Answer:

the anwser is 6(2vw?y+3V^3x^6)

Step-by-step explanation:

Find the x- and y-intercepts of the graph of the linear equation 3x+6y=2

Answers

Answer:

x-intercept: 2/3

y-intervept: 1/3

Step-by-step explanation:

3x + 6y = 2

You're supposed to 'cover them'.

If you want to find the x-intercept, you will cover 6y like it doesn't exist. So now, it's going to be:

3x = 2

You'll then solve for x, which will be the x-intercept

3x/3 = 2/3 (Divide both sides by 3)

x = 2/3 or 0.66... (the 6 goes on forever)

Now, to find y, you'll act like x doesn't exist. It's going to be:

6y = 2

Solve for y, which will be the y-intercept

6y/6 = 2/6 (Divide both sides by 6)

y = 1/3 or 0.33... (the 3 goes on forever)

If you put them as coordinates:

x-intercept: (2/3, 0)

y-intercept: (0, 1/3)

1000 points!

Match the civilization with the region it was located in:

1. Safavid
Anatolia
2. Mughal
Iran
3. Ottoman
India

Answers

Answer:

1. iran

2. South asia

3.Anatolia

Step-by-step explanation:

hehe

Answer:

1. iran

2. South asia

3.Anatolia

Step-by-step explanation:

What is an
equation of the line that passes through the points (-3,7) and (3, 3)?

Answers

Y= -4/6x+5, the y-intercept is 5 and the slope is -4/6 hope this helped :)

if dy/dx = x(y-1), find the equation of the tangent line at x=-2 with f(-2)=3

Answers

Answer:

The equation of the tangent line passing through the point (-2,3) is

 4 x + y +5 =0

Step-by-step explanation:

Step(i):-

Given that the slope of the tangent

             [tex]m = \frac{dy}{dx} = x(y-1)[/tex]

             m = -2( 3-1) = -4

Given point x = -2

         y = f(-2) =3

∴The given point ( x₁ , y₁) = ( -2 ,3)

Step(ii):-

The equation of the tangent line passing through the point (-2,3)

[tex]y - y_{1} = m(x-x_{1} )[/tex]

[tex]y -3 = -4(x-(-2))[/tex]

y -3 = -4( x+2)

y-3 = -4x -8

4x + y -3+8=0

4x +y +5=0

Step(iii):-

The equation of the tangent line passing through the point (-2,3) is

  4 x + y +5 =0

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