find the value of the ratio a:5.7=8:12​

Answers

Answer 1

Answer:

a = 3.8

Step-by-step explanation:

a : 5.7 = 8 : 12

It can be also written as -

[tex] \frac{a}{5.7} = \frac{8}{12} [/tex]

[tex] = > \frac{a}{5.7} = \frac{2}{3} [/tex]

Multiplying 5.7 on both the sides ,

[tex] = > \frac{a}{5.7} \times 5.7 = \frac{2}{3} \times 5.7 [/tex]

[tex] = > a = \frac{2}{3} \times 5.7 = 3.8[/tex]


Related Questions


Which is most likely the equation of the graph above?
Oy-5
O y=x+5
Ox=5
O y = 5x

Answers

Answer:

the answer is Y=5

hope this helps☺

what is the answer to 5+5(9b - 7)

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Given the expression

5+5(9b - 7)

FIRST CASE (JUST EVALUATION)

Given the expression

[tex]5+5\left(9b-7\right)[/tex]

[tex]\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b-c\right)=ab-ac[/tex]

[tex]5+5\left(9b-7\right)=5+5\cdot \:9b-5\cdot \:7[/tex]

                     [tex]=5+45b-35[/tex]

                     [tex]= 45b - 30[/tex]

Therefore, we conclude that:

[tex]5+5\left(9b-7\right)=45b-30[/tex]

SECOND CASE (Finding the value of b)

Assuming we have to determine the value of b

[tex]5+5(9b - 7) = 0[/tex]

As we have determined

[tex]5+5\left(9b-7\right)=45b-30[/tex]

so substituting [tex]5+5\left(9b-7\right)=45b-30[/tex] in the equation

[tex]45b-30 = 0[/tex]

Add 30 to both sides

[tex]45b-30+30=0+30[/tex]

Simplify

[tex]45b=30[/tex]

Divide both sides by 45

[tex]\frac{45b}{45}=\frac{30}{45}[/tex]

Simplify

[tex]b=\frac{2}{3}[/tex]

Therefore, the value of b = 2/3

reposting because nobody will help me..

Answers

Answer:

B

Step-by-step explanation:

18 = 2 * 3 * 3 = 2 *3²

[tex]18*3^{(n+2)} = 2*3^{2}*3^{n+2}\\\\[/tex]

                [tex]= 2*3^{2+n+2}\\\\= 2*3^{n+4}\\\\= 2(3)^{n+4}[/tex]

Hint:

[tex]a^{m}*a^{n} = a^{m+n}[/tex]

Help ME out I need help on this Right noww

Answers

The answer is B and D

Prime Factorization of 63 is 3 x 3 x 7.
What is the equivalent expression?
A. 23 x 7
B. 9x7
C. 32 x 7
D. 3x7

Answers

Answer: 9 x 7

Step-by-step explanation: 9 x 7 = 63

Hope this helps!

Write the equation as a single logarithm.
log(x^2- 16) -log(x + 4)
a. log4
c. 108((x^2- 16)(x + 4)
b. log(x-4)
d. Iog(x + 4)

Answers

Answer:

B-log(x-4)

Step-by-step explanation:

Have a nice day lol i just know things

The equation as a single logarithm is:

[tex]log[(x^2 - 16)/(x + 4)].[/tex]

Option C is the correct answer.

What is an equation?

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

Using the logarithmic identity,

log a - log b = log (a/b)

We can simplify the given expression as:

[tex]=log(x^2 - 16) - log(x + 4) \\= log[(x^2 - 16)/(x + 4)][/tex]

Therefore,

The equation as a single logarithm is:

[tex]log[(x^2 - 16)/(x + 4)].[/tex]

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ7

Brenda pays $30 for materials to make earrings. She makes 10 earrings and sells 7 for $5 and 3 for $2. Write a numerical expression to represent this situation and then find Brenda's profit?

Answers

Brenda’s Profit is $11
This is because she spent $30 to begin with and made a total of $41, once the expenses for materials have been subtracted she is left with $11.
5x + 2y=41
x=7 (for the # of earrings sold for $5)
y= 3 (for the # of earrings sold for $2)
5(7) + 2(3)=41
41 - 30 = 11

Which of the following disciplines is contributing to Organizational Behavior?
= Anthropology

Answers

Step-by-step explanation:

Anthropology is the real answer hshshshshs

Find the two numbers that have a mean of 12 and a range of 6.​

Answers

Answer:

9 and 15

Step-by-step explanation:

9 + 15 = 24/ 2 = 12

15 - 9 = 6

The two numbers are 15 and 9.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

We have,

Mean of two number is 12 and range is 6.

let the two number be a and b

So, Mean = (a + b)/ 2

12 = (a + b)/ 2

a+ b= 24.........(1)

Now, range = 6

a - b = 6........(2)

Solving equation 1 and 2 we get

2a = 24-6

2a = 18

a= 9

and, b= 24 - 9

b = 15

Learn more about Equation here:

https://brainly.com/question/29657983

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subtract 10 from w, then subtract 5 from the result
help me pleaseee

Answers

Answer:

w-10-5

Step-by-step explanation:

you are looking for the expression right??

w - 10 = -5
+ 10 +10
w = 5

At a table tennis tournament, two games went on for a total of 32 minutes. One game took 12 minutes longer than the other. How lond did it take to complete each game? Use letters to represent the unknowns.

Answers

Answer: game 1  10 mins game 2 22

Step-by-step explanation:

Sal purchases a new gaming system and games for $530. The tax is 7%. How much would he spend in taxes only ?

Answers

Answer: 37.1

Step-by-step explanation: 530 x .07

Answer:

$37.10

Step-by-step explanation:

You have to take the total price and multiply it by the decimal equivalent of the sales tax. In this case, 7% = 0.07, and so 530 x 0.07 = 37.10. If you wanted to get the total price (for future reference) then you would simply add the tax total to the original price.

Can someone one plz answer this for me !

Answers

Answer:

-7

Step-by-step explanation:

Also for the last two you gave, the answers to your questions were wrong. They gave you the wrong answer. The answer for the other 2 were A ($30) and the slope for the other answer was (1/2)

Find an equation of the plane consisting of all points that are equidistant from (-1, 1, -5) and (4, -5, 0).

Answers

Answer: the required equation is 5x - 6y + 5z = 7

Step-by-step explanation:

Given that;

points : (-1, 1, -5) and (4, -5, 0).

mid point : ( [(-1+4)/2], [(1-5)/2], [(-5+0)/2]

⇒ midpoint : ( 3/2, -2, -5/2 )  

                        x₀    y₀    z₀

Direction vector n = [4-(-1)], [ -5 - 1], [ 0 - (-5)]

⇒ Direction vector n = < 5, -6, 5 >

General equation plane : n(x-x₀, y-y₀, z-z₀) = 0

so we substitute

⇒ (5, -6, 5) (x-3/2, y-(-2), z-(-5/2) ) = 0

⇒ (5, -6, 5) (x - 3/2, y + 2, z + 5/2) ) = 0

⇒ 5(x - 3/2) - 6(y + 2 ) + 5(z + 5/2) = 0

⇒ 5x - 15/2 - 6y - 12 + 5z + 25/2 = 0

⇒ 5x - 6y + 5z = 15/2 + 12 - 25/2

5x - 6y + 5z = 7

Therefore, the required equation is 5x - 6y + 5z = 7

Need help as soon as possible!!!!!!

before using a microscope, should the stage be way up?



True or False. And please tell me why you got that answer....

Answers

Answer:

Move it up as far as it will go without letting the objective touch the coverslip.

Step-by-step explanation:

I will give you the brainliest

Answers

Answer:

h= 6.8

Step-by-step explanation:

3x+57+x-17=180
What does x equal? PLZ HELP

Answers

x equals 35 i believe

Answer: X= 35

Step-by-step explanation:

Combine like terms then factor them out

i giveeeeee brainlilst

Answers

Answer:

C' (-9 , 3)  D' (6 , 3)  E' (-9 , 6)

Step-by-step explanation:

Dilation Factor: 3           Origin: (0,0)       (x,y) ---> (3x,3y)

C' (-9 , 3)

D' (6 , 3)

E' (-9 , 6)

Please help with this

Answers

Answer:

65

Step-by-step explanation:

log5 (x) <-2
I need help fast

Answers

Answer: x < -2.861353

Step-by-step explanation:

simplify to: 0.69897x <-2

divide both sides by 0.69897

0.69897/0.69897 < -2/0.69897

so the answer is x < -2.861353

simplify equation: 6x2+7x−3x2−2x

Answers

Answer:

8x+4

Step-by-step explanation:

help me please thank you very much

Answers

So you would subtract the angles number by 180

The volume of a cylinder is 5070 pi cm3. If the height is 30 cm, what is the radius?

Answers

Answer:

r =13

Step-by-step explanation:

on the picture

If it's helpful ❤❤

THANK YOU.

Jerry has been learning to multiply decimals by Integers.
When you multiply an Integer
by 0.01, it's the same as
dividing it by 100.
Is he correct? Prove your answer with examples!​

Answers

Answer:

Yes

Step-by-step explanation:

Multiplying an integer by 0.01 is the same as Dividing such as :

0.01 = 10^-2

100= 10

For instance :

A number, n = 5 is multiplied by 10^-2

5 * 0.01 = 0.05

Thus, divide the number, n by 100;

5 / 100 = 0.05

Hence, the proof.

What is 3 less than twice a number n?

Answers

Answer:

n^2-3

Step-by-step explanation:

I need the answer. Please hurry

Answers

Answer:

The answer would be D i hop this helps.

Step-by-step explanation:

Factor −1/5 out of −1/5x−9.

Answers

Answer: 1/25 -9

Step-by-step explanation:

Answer:

- [tex]\frac{1}{5}[/tex] ( x + 45 )

Step-by-step explanation:

Given

- [tex]\frac{1}{5}[/tex] x - 9 ← factor out - [tex]\frac{1}{5}[/tex]

= - [tex]\frac{1}{5}[/tex] ( x + 45 )


Write the following equation symbolically.

The sum of h and 5 is equal to 8 less than 6 times y.

Answers

Answer:

h+5=(6y)-8

Step-by-step explanation:

The sum is addition. So it wants you to add h and 5 on one side. Do 6 and y in parentheses on the other side and it wants you to subtract 8 from what you got from 6 times y.

Hope this helped!!

What is the answer to 2.5d + 7.5 = 20

Answers

Answer:

d=5 mark brainliest if satisfied

Step-by-step explanation:

Subtract 7.5 from both sides

2.5d=12.5

d=5

Find the value of x justify a reason for your setup

Answers

Answer:

4(x+6)=(5x+11)

4x+24=5x+11

5x-4x=24-11

x=13º

angles trimmed by the vertices have the same measure

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