Are the ratios 3:9 and 21:27 equivalent? Why or why not?

Answers

Answer 1

Answer:

Not equivalent

Step-by-step explanation:

Given:

3:9 and 21:27

We see that

21:27= 7:9

Comparing:

3:9 < 7:9

They have same denominator but different numerator, hence they are different

Answer 2

Answer:  No

Step-by-step explanation:

No there are not since 3 times 7 = 21 and 9 times 3 = 27. The numbers that are used to multiply for the answers,  7 and 9, are not the same so therefore both ratios are not equivalent.


Related Questions

1. f(x) = 9x^2 - 3
Find the vertex

Answers

(0,-3)
Was the two supposed to be on the top
the vertex is (0,-3)

Un volcan lanza una roca con una rapidez de 47.5 m/s con un angulo de 39.4° sobre el eje x. La roca toca el suelo a 1750 m por debajo de la altura inicial si se desprecia la resistencia del aire y considerando un valor constante de aceleracion debido a la gravedad de 9.81 m/s¨2 cual es el tiempo en completar la trayectoria

Answers

Responder: 6.1467 segundos

Explicación paso a paso:

El tiempo necesario para completar la trayectoria se conoce como tiempo de vuelo.

Tiempo de vuelo = dónde;

U es la velocidad inicial del cuerpo = 47,5 m / s

es el ángulo de lanzamiento = 39,4 °

g es la aceleración debida a la gravedad = 9,81 m / s²

Sustituyendo los parámetros dados en la fórmula anterior, tendremos;

[tex]T = \dfrac{2(47.5)sin39.4^0}{9.81} \\\\T = \dfrac{95sin39.4^0}{9.81} \\\\T = \dfrac{95*0.6347}{9.81} \\\\T = \dfrac{60.2994}{9.81} \\\\T =6.1467 secs[/tex]

El tiempo necesario para completar la trayectoria es de 6.1467 segundos.

the quotient of 24.5 ÷ 0.8 and 245÷8 is equal to?​

Answers

Answer:

Step-by-step expla

24.5 by 0.8 =30.625

245 by 8 = Exact form is =245/8

                  desimal from is = 30.625

                   mixed number form is = 30 5/8  

Solve -5< 4x +3 < 7.
The second “<“ has a line under it. Please help! This is on APEX.

Answers

Answer:

C -2 < x ≤ 1

Step-by-step explanation:

-5< 4x +3 ≤ 7

Subtract 3 from all sides

-5-3< 4x +3-3 ≤ 7-3

-8< 4x  ≤ 4

Divide all sides by 4

-8/4< 4x/4  ≤ 4/4

-2 < x ≤ 1

Use the given endpoint Y and the midpoint M of YZ (there is a line over YZ) to find the coordinates of the other endpoint Z

Answers

The x-coordinate of our midpoint = 3

The x-coordinate of Y = 0

k  = x-coordinate of Z

3 = (0 + k) / 2

Multiply both sides by 2

6 = k + 0

Simplify

6 = k

The y-coordinate of our midpoint = 3

the y-coordinate of Y = 5

w = y-coordinate of Z

3 = (w + 5) / 2

Multiply both sides by 2

6 = w + 5

Subtract 5 from both sides

1 = w

For problem #17, Z(6, 1)

Let's do problem 18 now.

The x-coordinate of our midpoint = 5

The x-coordinate of Y = -1

k = x-coordinate of Z

5 = (k + (-1)) / 2

Multiply both sides by 2

10 = k + (-1)

Simplify the right side

10 = k - 1

Add 1 to both sides

11 = k

The y-coordinate of our midpoint = 9

The y-coordinate of Y = -3

w = y-coordinate of Z

9 = (w + (-3)) / 2

Multiply both sides by 2

18 = w + (-3)

Simplify the right side

18 = w - 3

Add 3 to both sides

21 = w

For problem #18, Z(11, 21)

If K is the midpoint of JL , JK = 6x + 11 and KL = 16x +1, find JL.
Pls I need help

Answers

Since K is the midpoint of JL and we know that JK and KL are separate segments of JL, JK and KL are equal to each other.

6x + 11 = 16x + 1

Subtract 6x and 1 from both sides

10 = 10x

Divide both sides by 10

1 = x

We also know that:

JL = JK + KL = 6(1) + 11 + 16(1) + 1 = 6 + 11 + 16 + 1 = 34

Evaluate 4(a2+2b)-2 when a = 2 and b =-2

Answers

Answer: -2

Explanation

4×(2×2+2×-2)-2

=4×(4-4) -2

=4×0 -2

= -2

Ryan shaded 70 squares on his hundredths grid. Sarah shaded 80 squares on her hundredths grid .Which decimals show how much of the grid Ryan shaded?

Answers

Answer:

0.7

Step-by-step explanation:

70 shaded squares out of 100

= 70/100

=0.7

PLEASE HELP WILL MARK BRAINLIEST!! THE QUESTION IS ABOVE IN THE PICTURE PLEASE HELP!!!




WORTH A LOT OF POINTS I PUT 65!! HELP MARK BRAINLIEST
THE OPTIONS FOR CHOOSE ARE 1st one- 5, 50, 2, and 10. 2nd one- 10, 5, 50 and 100

Answers

Hello! The first answer choice is D. Can you try sending another picture for the second part? I think part of the picture got cut off, so I can’t answer it. Have a great day! :)

Answer:

C.   100 ≤ 20x 1000

Step-by-step explanation:

area of a rectangle is L x W

where W = 5,  L = 4x

area 100 ≤ A ≤ 1000

A = 5 (4x)

= 20x

in which inequality 100 ≤ 20x 1000

What type of information is being presented on this graph?

Answers

The percent of different Expenditures for State and Local Governments.

x -0.63 = 1.16 I couldn't find the answer can someone please help me?​

Answers

Answer:

x= 1.79

Step-by-step explanation:

x-0.63=1.16 add 0.63 to both sides

x= 1.79

Answer:

x =1.79

Step-by-step explanation:

x -0.63 = 1.16

Add .63 to each side

x -0.63+.63 = 1.16+.63

x =1.79

13.) The ratio of the weight of an object on Mars to the weight of that object on Earth is 4:10. If a rocket weighs 15 tons on earth, how many tons would it weigh on Mars? (Need help quick please)​

Answers

Answer: 6 tons

Step-by-step explanation: 4:10 is also 2/5 so all we need to do is 2/5 of 15 which is 6. [15x(2/5)]

Hope this helps!

Please mark Brainliest!

what is the reflection of (x, -y) across the y-axis.

Answers

Reflection across the y-axis makes the x-coordinate opposite.
(x, -y) —> (-x, -y)

Find the Distance between the points (-6,5)and(8, -3)


Answers

Answer:

[tex]d=16.1245[/tex]

Step-by-step explanation:

Distance Formula: [tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Simply plug in your 2 coordinates into the formula to find distance d:

[tex]d=\sqrt{(8-(-6))^2+(-3-5)^2}[/tex]

[tex]d=\sqrt{(8+6)^2+(-8)^2}[/tex]

[tex]d=\sqrt{(14)^2+64}[/tex]

[tex]d=\sqrt{196+64}[/tex]

[tex]d=\sqrt{260}[/tex]

[tex]d=16.1245[/tex]

Is 0.7 a rational or irrational number?

Answers

Answer:

0.7 is a rational number.

Explanation:

Because it is a terminating decimal expansion.

Answer:

0.7 is a rational  number- experssed as a fraction, it is equal to 7/10

Somebody plz just answer number 11!!!
Thanks (Will mark as if correct brainliest)
:D

Answers

Answer:

27.38

Step-by-step explanation:

This is the answer because:

1) Standard form means to write the full number

2) First we have to multiply because we have to use order of operations

3) So do 2 x 10 which is 20

4) Then, do 7 x 1 which is 7

5) Next, do 3 x 0.1 which is 0.3

6) Finally, do 8 x 0.01

The new equation is:

20 + 7 + 0.3 + 0.08

This expression equals to 27.38

Therefore, the answer is 27.38

Hope this helps!


A bag of candy contains 203 pieces. Each person in the room receives 10 picces of candy and there are 3 pieces of
candy left over. Write and solve an equation to find how many people were in the room.

Answers

Answer:20

Step-by-step explanation:

You take 203 and subtract 3 since you know you have 3 pieces left over you then divide 209 by 10 and get 20!!

Answer:

20 people

Step-by-step explanation:

Did it in my head

The price of a tv is rs3000.if the discount is rs1560,find the percent of discount.

Answers

Answer:

price of tv = 3000

discount =1560

discount % = 1560/3000 * 100% = 52%

Step-by-step explanation:

Answer:

52

Step-by-step explanation:

Formula =discount ×100÷original price

1560×100÷3000=52%

what is (10y+6) (8y-6) ?

Answers

Answer:

y = 3/4 or y = -3/5

Step-by-step explanation:

Solve for y:

(8 y - 6) (10 y + 6) = 0

Hint: | Find the roots of each term in the product separately.

Split into two equations:

8 y - 6 = 0 or 10 y + 6 = 0

Hint: | Look at the first equation: Factor the left hand side.

Factor constant terms from the left hand side:

2 (4 y - 3) = 0 or 10 y + 6 = 0

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides by 2:

4 y - 3 = 0 or 10 y + 6 = 0

Hint: | Isolate terms with y to the left hand side.

Add 3 to both sides:

4 y = 3 or 10 y + 6 = 0

Hint: | Solve for y.

Divide both sides by 4:

y = 3/4 or 10 y + 6 = 0

Hint: | Look at the second equation: Factor the left hand side.

Factor constant terms from the left hand side:

y = 3/4 or 2 (5 y + 3) = 0

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides by 2:

y = 3/4 or 5 y + 3 = 0

Hint: | Isolate terms with y to the left hand side.

Subtract 3 from both sides:

y = 3/4 or 5 y = -3

Hint: | Solve for y.

Divide both sides by 5:

Answer: y = 3/4 or y = -3/5

Water covers 70.8%, or about 3.61 108 km2, of the Earth's surface. Approximate the total surface area of the Earth. (Round your answer to the nearest million.)

Answers

This question was not properly written

Complete Question

Water covers 70.8%, or about 3.61 × 10⁸ km², of the Earth's surface. Approximate the total surface area of the Earth. (Round your answer to the nearest million.)

Answer:

510,000,000 million km²

Step-by-step explanation:

Let us represent the total surface area of the earth as = x

We are told in the question that:

Water covers 70.8%, or about 3.61 × 10⁸ km², of the Earth's surface.

70.8% = 0.708

Hence,

0.708 × x = 3.61 × 10⁸

x = 3.61 × 10⁸/0.708

x = 361000000/0.708

x = 509,887,005.65km²

Therefore, the total surface are the earth approximately to the nearest million = 510,000,000 million km²

K-Mart is offering a 15% discount on children's clothing. Susan sees a jumper she likes for $30. How much does she pay for the jumper?​

Answers

The answer is $25.5!

Problem
3x + 5 + 2x = 12 + 4x

Answers

x=7 All you need to do is combine like terms and then move the appropriate terms to the appropriate side.

Answer:

x=7

Step-by-step explanation:

because u add the like terms so

3x+2x

which would be

5× so now its

5x+5=12+4x

-4. -4

x+5=12

-5. -5

x=7

Which answer gives the correct inequality for the following number line?

Answers

Answer:

n < -2

Step-by-step explanation:

Numbers to the left from -2

Set of numbers:

(- oo, -2)

The inequality for the given line:

n < -2

Find KM in this segment .

Answers

Answer:

164

Step-by-step explanation:

7x + 24 = 6x - 20 + 64

7x - 6x = 64 - 20-24

x = 64 - 44

x = 20

KM = 7x + 24 = 7*20 + 24 = 140 + 24

KM = 164


Elizabeth wants to change cell phone plans. Before contacting the service provider, she makes a table of her cell phone minutes used over the course of a week.

Monthly Water Bills
Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec
$40 $42 $40 $38 $48 $50 $58 $62
$62 $56
$56 $46
$46 $44 $44
Round the following value
to the nearest minute.

Answers

Answer:

43 minutes$47

Step-by-step explanation:

1. Cell phone usage

Mon to Sun = 38, 62, 40, 10, 30, 55, 65

Mean = (38+62+40+10+30+ 55 + 65)/7 = 43 minutes rounded

2. Water bills

Jan to Dec = $40 $42 $40 $38 $48 $50 $58 $62  $56 $46  $44 $44

Mean = (40+42+40+38+48+50+58+62+56+46+44+44)/12 = $47 rounded

how do u factorise 45x - 10

Answers

Answer:

-450

Step-by-step explanation:

The value of factors of the function are,

⇒ 5 (9x - 2)

What is mean by Function?

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;

The expression is,

⇒ 45x - 10

Now, We can factor the equation as;

⇒ 45x - 10

⇒ 5×9x - 5×2

⇒ 5 (9x - 2)

Thus, The value of factors of the function are,

⇒ 5 (9x - 2)

Learn more about the function visit:

https://brainly.com/question/11624077

#SPJ5

(2.569
3
2. Stephanie has 3 bags of soil to put in her garden. Each bag of soil will cover 125 ft.
How many square feet will Stephanie be able to cover if she uses all these bags of soil?
(7.3A)

Answers

i cant understand your question define briefly

Oranges are on sale for a $1.59 per pound write a function as a standard equation

Answers

F(x)=1.59x would be the function equation.

Please answer and give an explanation.

Answers

Answer:

h=12.5

Step-by-step explanation:

It’s a right triangle, so you can use the Pythagorean Theorem.  

9.2²+8.5²=h²

84.64+72.25=h²

156.89=h²

√156.89=h

h=12.5255

h=12.5

What is 28828+88+8+78282882728288+8+888+8882828888-8–88-89939x929299999299292929+839929828-0+9929299x91919192939939+929292992929999-9-9-9999299202839393=

Answers

Answer:

-8.2667628e+22

-Step-by-step explanation:

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