3:9 and 27:81 are the ratios equivalent or not?

Answers

Answer 1

Answer:

Yes

Step-by-step explanation:

If you reduce 27:81 it will reduce to 3:9.

Answer 2
Yes you can also reduce it again which gives you 1:3

Related Questions

4.1% of 30
I’m in 7th grade so please don’t answer it to complicated lol

Answers

its

= 4.1/100 × 30

= 41/1000 × 30

= 123/100

= 1.23%

Answer:

1.23

Step-by-step explanation:

Hey there !!!!!

4.1% of 30

if we solve it :

Y is 4.1% of 30

Equation: Y = P% * X

Solving our equation for Y

Y = P% * X

Y = 4.1% * 30

Converting percent to decimal:

p = 4.1%/100 = 0.041

Y = 0.041 * 30

Y = 1.23

therefore:

4.1% of 30 = 1.23

Have a wonderful day

What percent of a dollar is 0.28

Answers

Step-by-step explanation:

Solution for 100 is what percent of 0.28:

Percentage solution with steps: Step 1: We make the assumption that 0.28 is 100% since it is our output value.

Answer:

28%

Step-by-step explanation:

1
2. Verify that (1 - cos^20) CSc^20 =
(4 Points)

Answers

(1-cos^2(x)) csc^2(x)=1

one of the trigonometry rules is sin^2(x) + cos^2(x) = 1 if you rearrange this you realize that sin^2= 1-cos^2(x)

we also know that csc^2(x)= 1/sin^2(x) so now you can rewrite your equation as:

sin^2(x) x 1/sin^2(x) = 1

sin^2(x)/sin^2(x) =1

the LHS (left hand side) can cancel down to 1 because the numerator and denominator are the same

so then 1=1 Therefore LHS=RHS

Hope this helps

What is the measure of the 5th angle?

Answers

Answer:

114

Step-by-step explanation:

Add all the angles displayed and add 90 degrees because we can see one of the angles is a right angle, Now take the total and subtract 540 with the sum and you will get 114 which is your answer.

PLZ ANSWER QUICK IT WILL HELP A LOT!

Answers

Answer:

The answer is b

Step-by-step explanation:

If y is reflected it will cause both to change

Answer:

it's b

Step-by-step explanation:

its b because yeah

Kristy wrote down a decimal number that is greater than 0.76 but less than 0.82. Which number did Kristy write?

Answers

Answer:

Step-by-step explanation:

0.79

please help me out i need it with these questions!!!!

Answers

Answer:

8*7-4*8

now

56-32

24 answer

HELP FAS, worth 20 points

Answers

Answer:

1. infinite solutions.

2. no solutions.

Step-by-step explanation:

a. 8x + 7 = 8x + 7

The expressions are equal to each other; therefore, the equation has infinite solutions.

b. 10t - 6 = 10t + 6

10t = 10t + 12

0 = 12

These terms do not equal each other. 0 does not equal 12; therefore, this equation has no solutions.

Find the measure of

Answers

Answer:

∠ HGL = 73°

Step-by-step explanation:

KL is a midsegment of the triangle and is parallel to HG, then

∠ KLJ = ∠ HGL ( corresponding angles ), so

9x - 62 = 5x - 2 ( subtract 5x from both sides )

4x - 62 = - 2 ( add 62 to both sides )

4x = 60 ( divide both sides by 4 )

x = 15

Thus

∠ HGL = 5x - 2 = 5(15) - 2 = 75 - 2 = 73°

Answer:

(See Below)

Step-by-step explanation:

What is the simplest form of this expression?
(X - 4)(x4 + 3x - 5)

Answers

You raise x to the 4 the power, then take the cube root

Find the area of the shaded part of circle Y.

Answers

Answer:

201.45 cm²

Step-by-step explanation:

The whole circle has an area of π(9)² cm², or 81π cm². The shaded part represents all of the circle except for the chunk swept out by sector XZ.

Sector XZ sweeps out 75°, which represents 75/360 of the whole circle, or, simplified, 15/72. That means the shaded area must represent the other 57/72. To find the area then, we can just multiply that fraction by 81π:

[tex]81\pi\cdot\frac{57}{72}=9\pi\cdot\frac{57}{8}[/tex]

Using π ≈ 3.14 and crunching the numbers out gives us a result of approximately 201.45 cm².

If H is the circumcenter of triangle BCD, find each measure. CD, CE, HD, GD, HG, HF

Answers

Answer:

H is the circumcenter of triangle BCD

CD = 2FD = 2*32 = 64CE = BE = 26HD = HC = 33GD = 1/2BD = 1/2(58) = 29HG = √HD ²-GD² = √33²-29² = 2√62 ≈ 15.75HF = √HD ²-FD² = √33²-32² =√65 ≈ 8.06

what is 2/7 + 2/5 in simplest form

Answers

Answer:

24/35

Step-by-step explanation:

The effect of pH on the action of a certain enzyme
is shown on the accompanying graph.
Rate of Enzyme Action
0 1 2 3 4 5 6 7 8 9 10 11 12 13
pH
What is the domain of this function?
1) 4 2) 4sys 13
3) 20
4 y20

Answers

Answer:

4 <(less than or Equal to) y (less than or Equal to) 13

Step-by-step explanation:

Which rule describes the x-coordinates in the translation below?. 4 2 h 1 M * 3 us A.x+0
Bx+6
C.X-6
D.x+2​

Answers

Answer:

3 = 6 h M

Step-by-step explanation:

4 = 2 h ⋅ ( 1 M )⋅ 3 = 6 h M

you answered one of my questions before now i answer yours lol.

Will give brainilest!
A wall is y meters long. Two-thirds of the length of the wall is covered with stucco. The rest is covered with stone. Express
the length of the wall that is covered in stone.

Answers

1/3 of the wall is covered in stone

What is the price of $45 art set with 7% tax

Answers

Answer:

$48.15

Step-by-step explanation:

Take 45 and multiply it by 0.07 and you get 3.15. Add that number to 45 and you get 48.15 as your answer

The polygons are similar. find the missing length. i will give brainliest to first correct answer! HELP

Answers

Answer:

The answer is 48, I hope this helps!

Step-by-step explanation:

would you like me to explain?

Giving all my points away if you guys can help me please :) !

Answers

Answer:

A, B, D

Step-by-step explanation:

A: when x=0 y= -8

B: the 3/4 is attached to the x making it the slope

C: vertical line test

D: vertical line test

E: we just said the slope was 3/4

F: see A

Answer:

A,B,D

Step-by-step explanation:

The scale of a boat model is
2 inches = 6 feet. The boat
model is 15 inches long. How
long is the actual boat?

Answers

Answer:

well 2 times 15 = 30

30 times 6 = 180. So the boat is 180 feet long

Step-by-step explanation:

Answer:

The real boat is 45ft long

Step-by-step explanation:

15÷2=7.5 7.5×6=45

Simplify (x-4) (4^2+x-6)​

Answers

Answer:

(x-4)(x+10)

Step-by-step explanation:

1) 5k = 27
Solve equation and proportion

Answers

Answer:

k = 27/5

Step-by-step explanation:

Divide 5 on bot sides

5k/5 = 27/5

k= 27/5

so, k = 27/5 OR 5.4

emyr sat his gsce maths exam. he scored a total of 112 marks out of the 200 possible.

Answers

Answer:
56%
Step-by-step explanation:
Complete question
(Emyr sat his gcse math exam.he scored a total of 112 out of the 200 posible. What is her mark percentage?)
To calculate the percentage of a value, we first of all take the value obtained divided by the total possible value obtainable multiply by 100.
In this case, the value obtained was 112 and the total value obtainable is 200.
x = (112 / 200) * 100
X = 0.56 * 100
x = 56%.
The percentage of his score was 56%

- 4 ( - 3ab + 4ad ) - 6 ( 4ab ) - ( - 3ad)

Answers

Answer:

Is this pure simplification? If it is, here you go. :)

Step-by-step explanation:

= 12ab - 16ad - 24ab + 3ad

= (12ab - 24ab) + (-16ad + 3ad)

= (-12ab) + (-13ad)

= -12ab - 13ad

Step-by-step explanation:

-4(-3ab +4ad) -6(4ab)-(-3ab)

12ab-16ad-24ab+3ad

12ab-24ab-16ad+3ad

-12ab -13ad

The equation of line CD is y = 3x - 3. Write an equation of a line perpendicular to line CD in slope-intercept form that contains point (3,1). Oy = 3x + 0 Oy = 3x - 8 Oy -x+ 2 Oy= y = x + 0​

Answers

Answer:

y = -1/3x + 2

Step-by-step explanation:

Given line

y = 3x - 3

Perpendicular lines have negative-reciprocal slopes, so the line will be:

y = -1/3x + b

Use the point (3, 1) to find b:

1 = -1/3(3) + b1 = -1 + bb = 2

The line is:

y = -1/3x + 2

Leila and Joe are two partners in a business. Leila makes $3 in profits for every $4 that Jo makes. If Jo makes $32 profit on the first item they sell, how much profit does Leila make?

Answers

Answer:

$24

Step-by-step explanation:

Since 32 divided by 4 equals 8, and 8 times 3 equals 24, if Jo makes $32 profit on the first item they sell, Leila will make $24 profit.

I hope this helps you :D

How do you factorise fully x³-x

Answers

Answer:

=x³-x

=x(x²-1)

=x(x²-1²)

=x(x+1)(x-1)

hope it helps.

¿cual de ellos creen que se muestre en el dibujo​

Answers

Answer:

Step-by-step explanation:

si si

Shannon's bank balance was $15. Her mother the put $200 into her account for her birthday. Shannon then spent $187 on a new purse. How much money does Shannon have in her bank account after she boys a purse?
PLEASE HELP!!

Answers

15+200=215
215-187
=28

Saj makes Rose Pink paint and Cherry Pink paint. He mixes red paint with white paint as shown. Rose Pink red : white =1:2 Cherry Pink red : white =4:3 He makes 60 litres of Rose Pink paint. To this Rose Pink paint he adds 80 litres of red paint and 28 litres of white paint. Has he now made Cherry Pink paint? You must show your working.

Answers

Answer:

No. He had not made cherry pink paint

Step-by-step explanation:

Rose Pink red : white = 1 : 2

Cherry Pink red : white = 4 : 3

...he adds 80 litres of red paint and 28 litres of white paint.

The question basically want us to check if it follows the ratio.

To have the cherry pink, the ratio must be 4:3 however the ration of paint he mixed is;

80 : 28 which is equivalent to 20 : 7

This means he had not made cherry pink paint

Adding 80 litres of red paint and 28 litres of white paint to the 60 liters of Rose pink paint does not make Cherry pink paint

The ratios are given as:

Rose pink paint-> Red : White = 1 : 2

Cherry pink paint-> Red : White = 4 : 3

When he makes 60 liters of Rose pink paint, the proportion of white and red paints are:

[tex]Red = \frac{1}{1 + 2} \times 60[/tex]

[tex]Red = 20[/tex]

[tex]White = \frac{2}{1 + 2} \times 60[/tex]

[tex]White = 40[/tex]

He then adds 80 liters of red and 28 liters of white paints.

So, the new proportions are:

[tex]Red = 20+80[/tex]

[tex]Red = 100[/tex]

[tex]White = 40+28[/tex]

[tex]White = 68[/tex]

Express as ratio

[tex]Red : White = 100 : 68[/tex]

Simplify to the smallest term

[tex]Red : White = 25 : 17[/tex]

25:17 is not equivalent to 4:3.

Hence, he has not made Cherry pink paint

Read more about ratios and proportions at:

https://brainly.com/question/21602143

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