PLEASE I NEED HELP!! what are two ways that you can tell that two ratios form a proportion? i really need to pass this test to get my grades up, I'm not trying to cry my whole winter break.​

Answers

Answer 1

Answer:

A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."

Step-by-step explanation:

Answer 2

Answer:

A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fraction in it’s simplest form. Another way is to see if the numbers in the ratios are factors or multiples of each other. For example, 10:5 and 30:15. 10:15= 10/5 and 30:15= 30/15. Then you put it in simple form. 10/5 = 2 and

30/15 = 2. Therefore 10:5 and 30:15 are proportional.

Hope this helps :)


Related Questions

Plz need help rn What is m

Answers

Answer:

measure of angle p=

94

Step-by-step explanation:

ok 5 sided polygon= 540

so put all of those equal to 540

need to find x first

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

simplify and combine like terms

x=23

now plug in for angle p

(4(23)+2)

94

anyone know what the answer to this is i’m really bad in slope intercept form.

Answers

Answer:

it is D you were correct

diagram of ABCD to find m

Answers

Answer:

since the pairs of opposite lines in the diagram are parallel the measurement of B is also 63

to fine A and C simply subtract 180 - 63 which gives us 117 so

A = 117

B = 63

C = 117

D = 63

What statements can be supported by data from the table? Check all that apply.
The table shows a partial representation of the equations.
(2, 3.1) is an ordered pair from the table.
Plant 1 grew faster than Plant 2.
Both plants died at week 4.

Answers

Answer:

Step-by-step explanation:

83bc i did the test

Answer: A, B, C

Step-by-step explanation:

Got it right on edg

Please help for 15 points! ​

Answers

Answer:

There's nothing there

Step-by-step explanation:

3. Marissa thinks that there could be a pattern between the scale factor and perimeter of an image and its pre-image and between the scale factor and area of an image and its pre-image.
(a) Determine the perimeter and area of the picture and the perimeter and area of the mat.
(b) Create a table that shows the perimeter and area of the picture and the perimeter and area of the mat for scale factors of 2, 3, and 4.
(I will give brainliest) 50 points!

Answers

In linear equation, 1:16 the perimeter and area of the mat for scale factors.

What in mathematics is a linear equation?

A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.

                               Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.

Perimeter Ratio for scale factor 2: (picture)1:2 (mat)1:2

Ratio for scale factor 3: (pic) 1:3 (mat) 1:3

Ratio for scale factor 4: (pic) 1:4 (mat) 1:4

Area Ratio for scale factor 2: (pic &mat) 1:4

Ratio for scale factor 3:(pic&mat) 1:9

Ratio for scale factor 4:(pic&mat)1:16

Learn more about linear equation

brainly.com/question/11897796

#SPJ1

Which number makes this sentence true? 32:40=48:x

Answers

Answer:

x=60

Step-by-step explanation:

divid the numbers

multiply all terms by the same value to eliminate fraction denominator

simplify

The half life of a radioactive substance is 200 years. There are 8,000 grams of the substance initially. How many grams of the substance are left after 300 years?

PLEASE HELP ME!!! thank you so so so so much!!!! *will of course give brainliest*

Answers

Answer:

( B ) 2828.427 g

Step-by-step explanation:

Billy is on the cross-country team. His goal is to run on 2/3 of the days in September, which has 30 days. If Billy meets his goal, how many days will he run? Group of answer choices

Answers

Answer:

20

Step-by-step explanation:

30/3=10

10*2=20

7=x+12
a-19
b-5
c4
d5

Answers

Answer:

the answer is b

Step-by-step explanation:

-5+12=7

Answer:

D

Step-by-step explanation:

X= 12-7

X=5

Hope this was helpful

Zak and Ryan earn $60 per week for delivering pizzas. Zak worked for x weeks and earned an additional total bonus of $25. Ryan worked for y weeks. Which expression shows the total money, in dollars, that Zak and Ryan earned for delivering pizzas?

Answers

Answer:

60x + 25 + 60y

Step-by-step explanation:

60 times x plus 60 times y plus 25

Answer:

60x + 25 + 60y

Step-by-step explanation:

no, but i hope this helped!

Help Geometry help pleasseeee??

Answers

formula

perimeter:c²=a2+b2

area:A=length x width

PLS HELP!!!!!! WILL GIVE BRAINY

Answers

Answer:

#14) B) 7 cars

#15) C) 37

Step-by-step explanation:

Hope this helps

This should help with your solution
14: b
15: c

stuck on this please help!!

Answers

Answer:

welp i got -2x+89

Step-by-step explanation:

You would have to sell them $79.62 i think

Write an equation in point-slope form of the line that passes through the point (5,-12) and has a slope of m= -2/5

Answers

Answer:

I hope that it will be help full for u

Step-by-step explanation:

As we know point slope form ,

(Y- Y1) = m (X- X1)

As given data ,

m = -2/5

(X1,Y1) =  (5, -12)

X1= 5 , Y1=  -12

putt in the above equation these values, we get

Y-(-12) = (-2/5) ( X-5)

Y+12=(-2/5)X+2

Y= (-2/5)X -10  Ans   ,ITs also an answer but if you want to simplify more ,

taking LCM we get

Y  = ((-2)X-50)/5

5Y=(-2)X-50 Ans

WILL MARK BRANLIEST ANSWER IF GOTTEN RIGHT

Answers

Answer:

corresponding angles im pretty sure

Answer:

Corresponding angles

Step-by-step explanation:

- A fish tank filter cleans 3 gallons of water every 1/4 hour. Set up and solve a proportion to determine how many gallons of water are cleaned in 4 hours.​

Answers

Answer: 48 gallons in 4 hours

Step-by-step explanation:

3 gallons every .4 hours > 12 gallons every 1 hour > 48 gallons every 4 hours

Solve the system of equations.
2x+8y=6
-5x-20y+-15

Answers

Answer:

2x+8y=6

Step 1: Add -8y to both sides.

2x+8y+−8y=6+−8y

2x=−8y+6

Step 2: Divide both sides by 2

[tex]\frac{2x}{2}[/tex] = [tex]\frac{-8y+6}{2}[/tex]

x=−4y+3

_________________________________________________________

−5x−20y−15

There are no like terms.

Answer:

=−5x−20y−15

Plz help!!!
Sarah and Jake collect bottle caps. Sarah started with 25 bottle caps
and gave away X number of them. Jake started with 40 bottle caps and gave
away 2 times as many as Sarah gave away. If they now how the same number of
bottle caps, how many bottle caps do they now have?

Answers

Answer:

10

Step-by-step explanation:

use the variable x and replace it with a 15 and use the same equation, it is the only number that fits

What is the value of x^2x
2
if x=4x=4?

Answers

Answer:

128

Step-by-step explanation:

(4^2)(4)(2)

128

Okaygbjtfuinubuvyyvbu

If 2 pounds of pasta salad serves 14 people then how much pasta salad should you bring to a picnic with 49 people.​

Answers

Answer:

7

Step-by-step explanation:

Since its 2 pounds for 14 people, it would be multiplyed by 7. If you need to feed 49 people divide by 7, giving you 7 pounds of pasta.

Find c.
3.3
450
450
с
Write your answer in simplest radical form.
units

Answers

Answer:

c = 3[tex]\sqrt{6}[/tex]

Step-by-step explanation:

triangle is right isosceles so both sides equal 3[tex]\sqrt{3}[/tex]

can use pythagorean theorem which is square each leg and set it equal to the hypotenuse (side 'c') squared

(3[tex]\sqrt{3}[/tex])^2 +  (3[tex]\sqrt{3}[/tex])^2 = c^2

(9x3) + (9x3) = c^2

27 + 27 = c^2

54 = c^2

c = [tex]\sqrt{54}[/tex]

simplify  [tex]\sqrt{54}[/tex] to equal = [tex]\sqrt{9}[/tex] x [tex]\sqrt{6}[/tex] which simplies to 3[tex]\sqrt{6}[/tex]

Percent equations I need help plzzz here is the question blank % of 6,000 = 4,800

Answers

80 percent of 6,000 is 4,800

Answer:

20%

Step-by-step explanation:

20% of 6000 = 4800

If I helped you, can you mark me brainliest please?

(x – 4)2 = -9 has no real solution

Answers

Answer:

x = -1/2

Step-by-step explanation:

(x - 4) * 2 = -9

Divide both sides by 2:

x - 4 = - 9 / 2

Add 4 to both sides:

x = - 1 / 2.

Answer:

Actually, it does have a solution

Step-by-step explanation:

Someone help me pls :/ asap :(

Answers

Answer: 6, -1

Step-by-step explanation:

1. Look at both of the lines. (Blue and purple)

2. Which dot connects to both lines? (The dot which is green)

3. Since they’re together, that’s the answer.

4. Find the coordinates.

5. Go to “0” and go left until you hit the green dot area. (6 as X axis)

6. Go down to the green dot to find the Y coordinate. (-1 as Y axis)

7. You got the answer (6, -1) !

WILL GIVE BRAINEST ANSWER TO WHO EVER EXPLAINS BEST!!!

At a party, everyone shook hands with everybody else. There were 66 handshakes. How many people were at the party?

Answers

Answer:

12 people

And when the twelveth shakes everyone's hands, that makes 66. So there were 12 people at the party. So n=12

Step-by-step explanation:

*Hope this helps*

Line t has slope 3 and passes through (0, 0). Follow these steps:
Step 1: Start at (0, 0)
Step 2: Move right 8 units

Answers

Answer:

foot

Step-by-step explanation:

10 x (5x) = ?
help pls

Answers

Answer:57

Step-by-step explanation:

Answer:

hey uh I just wanted to say thank you and helping Yuri she is my world I could not be the person I am without her

Step-by-step explanation:

PLS HELP!!!!!!?? 21 points
f(x)=x2. what is g(x)?
A.g(x)=(9x)2
B.g(x)=(1/3x)2
C.g(x)=(3x)2
D. g(x)=3x2​

Answers

So in able to get your answer high is c he

What is the y-intercept when a line has a slope of 3 and passes through
the point (2, 7)?

Answers

Answer:

The y-intercept is (0,1)

Step-by-step explanation:

So, first you need to find the equation! Point slope form is (y-y1)=m(x-x1).

Plug the numbers in and you get (y-7)=3(x-2). Now, the y intercept is where x=0, so plug in zero for x.

y-7=3(0-2)

y-7=3(-2)

y-7= -6.

-6+7= 1, so y=1

The ordered pair is then (0,1). Hope this was useful :)

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