Suppose a necklace is made from 18-karat gold and weighs 54 grams. Find the weight, in grams, of the pure gold in the necklace.

Answers

Answer 1

I work part time at a jeweler, that necklace would be worth about 3.3K and then also you didn't provide what the effect is. Wouldn't the necklace remain as 54 grams?


Related Questions

HELP ASAP PLEASEEEEE Use the given D to find the range of each function:

f

g(x)=−3x to the power of 2−4, D={−1, 2, 3}

Answers

Answer:

do your own homework

Step-by-step explanation:

1. listen to the teacher

2.ask alexa

dont ask me

1234567891011121314151617181920LOLOL

33. Find x
7 cm
15 cm
x

Answers

Answer:

 

(28√11 )

_______

15

Step-by-step explanation:

Answer:

x=13.2665 cm

Step-by-step explanation:

7²+x²=15²

49+x²=225

x²=225-49

x²=176

x=√176

x=13.2665

The square of a number is that number ___________________________________. The square of an integer is a _________________________.
The square of negative 12 is written as _______________. The opposite of the square of 12 is written as ______________.
2 • 2 = 4. Another number that can be multiplied by itself to equal 4 is _______.
2. Fill in the blanks with square root or principal square root.
A ___________________________________ is a number that produces a given number when it is multiplied by itself.
The ___________________________________ is the positive square root of a number and is shown using the radical symbol, √.
3. Complete the table to describe perfect cubes.
Definition A number multiplied by itself _______ times.
Examples 13 = 1 • 1 • 1 = _____
23 = _____ • _____ • _____ = 8
_____3 = 4 • 4 • 4 = _____
4. Answer the questions about cube roots.
What is a cube root?



Use the radical symbol to represent the cube root of 8.


What is the cube root of –8?



Main idea: Solving equations by taking the square root
5. Complete the steps to show how to solve x2 = 36.

6. Answer the questions about Ally's web page icons as you work through the problem in the study.
Each icon contains 1024 pixels arranged in rows. What does p represent in the equation p2 = 1024?




What is the first step in solving p2 = 1024?




Why doesn't the solution p = –32 make sense for this problem?





Main idea: Solving equations by taking the cube root
7. Solving an equation in the form x3 = p is similar to solving equations with squared terms. Complete the table to show the differences.

x2 = p x3 = p
To solve: Take the square root.

Number of solutions and their sign(s): Two solutions. One is positive and one is negative.

Example:


8. Answer the questions about Tanisha's baking supply container as you work through the problem in the study.
The volume of the salt container is 125 cm3. What does x represent in the equation x3 = 125?



What is the first step in solving x3 = 125?



Is x = –5 a solution to the equation? Why or why not?




Key Terms
Use this table to write definitions for the key terms from this activity in your own words. If you're confident you know a term, put a check mark next to it and move on.

Key Term Definition
cube

cube root

integer



inverse operations

perfect square

principal square root

square

square root

I











Answers

Did you just copy and paste your assignment??

If yes, please do not do such a thing and give it in a question by question basis, sorry but I can't type such a big one. Suggestion!!

The copper content of 18-carat gold was measured by two methods for six different samples collected from a jewelry production plant. Sample Method 1 Method 2 A 2.2% 2.5% B 1.8% 2.2% C 2.5% 3.0% D 3.0% 3.2% E 2.6% 2.3% F 2.6% 2.7% Which test would you use to determine if the results obtained by the two methods agree within experimental error?

Answers

Full question attached

Answer:

Paired t test

Explanation:

The paired sample t test is used to measure or compare the mean of two observations or samples by measuring each subject two times as is seen above with the gold measurement which would result in two sets or pair of samples in a statistical procedure. We observe from the question that we measure each gold with two methods and then compare result of the two methods in terms of their mean error using the paired t test.

find the value of the following expression 9(-4) over -3

Answers

Answer:

Look below

Step-by-step explanation:

9(-4) is the same as 9*(-4) so it equals -36.

-36/-3=positive 12 so ye. The answer is 12

Simplify the following fraction 25/100 ​

Answers

Answer:

1/4

Step-by-step explanation:

25 goes into 100 four times

1/4 because 25 can go into 100 4 times because 25 x 4= 100

how do i math? plssssssssssssssssss answer

Answers

Answer:

you just math you know pretty easy when you know what to do

Step-by-step explanation:

just practice

A bowl contains blueberry and strawberry there are a total of 10 berries in the bowl The ratio of blueberry to strawberry is 2 for every 3 how many of each berry are in each bowl ​

Answers

Answer:

4 blueberries and 6 strawberries

Step-by-step explanation:

A rectangle has an area of 48ft2 and a width of 6 ft. What it’s length??

Answers

Answer:

the length would be 8ft

hope i helped you

will give braineliest can anyone explain and answer this i reallllllly need help i will love you forever:) √5(8+3√6)

Answers

Answer:

34.3202205452

Step-by-step explanation:

Using the product rule for radicals and the fact that multiplication is commutative, we can multiply the coefficients and the radicands as follows.

Use the distributive property when multiplying rational expressions with more than one term.

Hi There!!

I think your answer is:

[tex]\sqrt[8]{5}+ \sqrt[3]{30}[/tex]

I'm not sure this 100% right....

[tex]\sqrt{HopeThisHelps}[/tex]

[tex]Loserbrazts[/tex]

ヾ(•ω•`)o

Solve 2x−1<4 and −5x−3>−3 and write the solution in interval notation. If there is no solution, type ∅.

Answers

2x - 1 < 4

First, let's add 1 to both sides.

2x < 5

Divide both sides by 2

x < 5/2 or (-∞, [tex]\frac{5}{2}[/tex])

-5x - 3 > -3

Add 3 to both sides.

-5x > 0

Divide both sides by -5

x < 0 or (-∞, 0)

The solution set of the given set of linear inequations 2x - 1 < 4 and -5x - 3 < -3 is [tex]\left ( -\infty , 0 \right )[/tex].

What are equations and inequations?

Algebraic expressions can be related to each other in many ways. When two expressions are equal to each other, they are called equations and are represented with an equal sign between them (=). When two expressions are not equal, they are called inequations and are represented by non-equal signs between them (>, <, ≥, ≤).

How to solve the given question?

In the question, we are asked to solve the given inequations:

2x - 1 < 4 ... (i), and -5x -3 > -3 ... (ii).

First, we will solve (i), in the following ways:

2x - 1 < 4.

or, 2x - 1 + 1 < 4 + 1 (Adding 1 to both sides of the inequation)

or, 2x < 5 (Simplifying)

or, 2x/2 < 5/2 (Dividing both sides of the inequation by 2)

or, x < 5/2 (Simplifying)

or, x ∈ [tex]\left ( -\infty , \frac{5}{2} \right )[/tex] ...(iii)

Now, we will solve (ii), in the following ways:

-5x -3 > -3.

or, -5x - 3 + 3 > -3 + 3 (Adding 3 to both sides of the inequation)

or, -5x > 0 (Simplifying)

or, -5x/(-5) < 0/(-5) (Dividing both sides of the inequation by -5, sign of the inequality reverses as we are dividing by a negative number)

or, x < 0 (Simplifying)

or, x ∈ [tex]\left ( -\infty , 0 \right )[/tex] ...(iv)

For the solution set, we need the intersection of (iii) and (iv)

[tex]\left ( -\infty , \frac{5}{2} \right )[/tex] ∩ [tex]\left ( -\infty , 0 \right )[/tex]

= [tex]\left ( -\infty , 0 \right )[/tex]

∴ The solution set of the given set of linear inequations 2x - 1 < 4 and -5x - 3 < -3 is [tex]\left ( -\infty , 0 \right )[/tex].

Learn more about the linear inequations at

https://brainly.com/question/24242251

#SPJ2

Determine the value of y, if x is 5.
y = x2-7

Answers

Answer:

y=3

Step-by-step explanation:

y= x*2-7    x=5

y= 5*2-7

PEMDAS states you do multiplication then addition

y= 10-7

y= 3

Hope this helps!

The model at the right best represents what percent?

Answers

Answer:

hehe ily tacos hehehhee

Step-by-step explanation:

Answer:

65% out of 100%

Step-by-step explanation:

hope this helps! :)

can you please help me ​

Answers

Answer:

The answer is true!

Step-by-step explanation:

Since B is in the middle and they both are congruent.

What is 4-9+(-6)?????????

Answers

Answer:

it's -11

Step-by-step explanation:

hope this helped

Answer:

-11

Step-by-step explanation:

Problem: 4-9+(-6)

First: 4-9

Second: -5+(-6)

Answer: -11

The water level in a pool drops 8 iches in a day so what is the average level drop in each hour

Answers

it would be 0, hope this helps :)

M=3 what is (5m-m3)+m(9m-25)=

Answers

Answer:

-6

Step-by-step explanation:

[tex](5m-m^3)+m(9m-25)\\\\m =3[/tex]

Substitute : m=3 into the given equation

[tex](5(3)-(3)^3)+3(9(3)-25)\\\\Follow\:the\:PEMDAS\:order\:of\:operations\\\\\mathrm{Calculate\:within\:parentheses}\:\left(5\left(3\right)-\\\left(3\right)^3\right)\::\quad -12\\\\=-12+3\left(9\left(3\right)-25\right)\\\\\mathrm{Calculate\:within\:parentheses}\:\left(9\left(3\right)-25\right)\::\quad 2\\=-12+3\times\:2\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:3\times\:2\::\quad 6\\=-12+6\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:-12+6\:\\:\quad -6[/tex]



2/5 y - 4 + 7 - 9/10 y ​

Answers

Answer:

-1/2y +3

Step-by-step explanation:

2/5y -4 + 7 -9/10y=

combine like terms

-1/2y +3

Identify each of the following variables as qualitative or quantitative. a. Favorite baby name b. Color of car c. Storage space on a computer drive d. Electrical current a. Is the variable qualitative or​ quantitative? Why? A. Favorite baby name is a qualitative variable. Its values are numerical. B. Favorite baby name is a quantitative variable. Its values are numerical. C. Favorite baby name is a qualitative variable. Its values are not numerical. D. Favorite baby name is a quantitative variable. Its values are not numerical.

Answers

Answer:

C. Favorite baby name is a qualitative variable. Its values are not numerical.

Color of car is a qualitative variable. Its values are not numerical.

Storage space on a computer drive is a quantitative variable. Its values are numerical.

Electrical current is a quantitative variable. Its values are numerical.

Step-by-step explanation:

A qualitative variable is a variable that is categorical and isn't numerical.

For example, your favourite baby names and colours are categorical, they cannot be measured on a numerical scale

Quantitative Variable are  variables that can be measured on a numeric scale.  Ordinal, interval and ratio scales are quantitative scales.

Storage space can be measured on a numeric scale e.g. the storage space has 400 GB

Electric current can be measured on a numeric scale e.g. eclectic current is 50 volts

Does this graph represent a function? Why or why not?

Answers

Answer:

D

Step-by-step explanation:

There are no two points on the same line so the answer is D

I hope this is right!

Answer: It's B

Step-by-step explanation:

Need help writing an equation and solving! A concert hall has seven sections. Each section has 23 rows. Each row has 14 seats. If the theater sells out for a particular performance, how many people attended? If the average tickets sold for $20, how much was collected at the box office?

Answers

Answer:

322 people attended and made $6440

Step-by-step explanation:

23 x 14 = 322

322 x 20 = 6440

Find the derivative of the function. y = tan2(8θ)

Answers

Answer:

16tan(8θ)sec²(8θ)

Step-by-step explanation:

Given the question :

Find the derivative of the function. y = tan2(8θ)

y = tan²(8θ)

USing chain rule :

dy/dx = (du/dx) × (dv/du) × (dy/dv)

Let u = 8θ ; du/dθ = 8

v = tan u ; dv/du = sec²u

y = v² ; dy/dv = 2v

Hence,

(dy/dθ) × dv/du × dy/dv

8 * sec²u * 2v

Where v = tan u ; u = 8θ

8 * sec²8θ * 2tan8θ

16tan(8θ)sec²(8θ)

640 - 40 = A.600 B.640 C.360 D.784 answer and you will get 45 points if you get correct and used paper and pencil.

Answers

Answer:

A. 600

Step-by-step explanation:

Answer:

A.............................,.

A carpenter makes wooden chairs.

He has enough wood to make 30 chairs.
He makes $60 profit on a dining chair and $90 profit on a rocking chair.
It takes him 1 hour to make a dining chair and 2 hours to make a rocking chair.
He only has 40 hours available to work on the chairs.
The carpenter wants to maximize his profit given the constraints. He draws the graph below to represent this situation.

Answers

Answer:

Is there supposed to be a graph somewhere?

What is 10% of 344?

Answers

Answer:

34.4

Step-by-step explanation:

10% is the same thing as 0.1 so 344 times 0.1 is 34.4

A percent (%) is equal to 1/100 (We actually don't call that 'per''cent' for no reason)

So 10% is actually 10 times % which is:

[tex]10\% \\ 10(\frac{1}{100}) \\ \frac{10}{100} \\ \frac{1}{10}[/tex]

If you get a calculator and calculate 1/10 the calculator should give 0.1

You might be taught that to get the decimal form from percent you just move the decimal point to the left twice (like 34% -----> .34) but if you do this, you are essentially dividing by 100 or multiplying by 1/100

now you know 10% is 0.1 the next thing to do is multiply it to 344.

[tex]344(\frac{1}{10}) \\ \frac{344}{10} \\ 34.4[/tex]

Answer:

34.4

Step-by-step explanation:

344 x 1/10 = 34.4

Can you help me out!

Answers

Answer:

Step-by-step explanation:

Cube root of 27/cube root of 125

=3/5

If you cube root both the numerator and denominator you will get 3/5 as a fractiob

The triangle shown is rotated 90 counterclockwise about the orgin what are the new coordinates of point A

Answers

Answer:

its A (2, 1 ) → A'(- 1, 2 )

Step-by-step explanation:

took test :)

The coordinates of the vertices of the new triangle are A'(-1,1) ,B'(-4,3), C'(-3,6)

What is rotation?

Rotation can be stated as the circular movement over the object around the center.

Rotation can be done in both directions like clockwise as well as counter clockwiseIt requires rotation implies negative magnitudeA counter clockwise turns has a positive magnitude.

here, we have,

given that,

Vertices of triangle = A(1,1) , B(3,4), C(6,3)

Triangle is rotated counterclockwise about the origin 90°.

In counterclockwise rotation (x,y) becomes (-y,x)

Then

the new coordinates of triangle are A', B', C'

A(1,1) = A'(-1,1)

B(3,4) = B'(-4,3)

C(6,3) = C'(-3,6)

The coordinates of the vertices of the new triangle are A'(-1,1) ,B'(-4,3), C'(-3,6)

To know more about rotation

brainly.com/question/16406252

#SPJ6

jimmy has a pool sixteen feet wide and twelve feet long how much material does he need to cover the pool

Answers

Answer:

192 square feet of material

Step-by-step explanation:

You find the area of the pool, which is length x width, and that is 12 x 16, which is equal to 192

I hope this helps!

Answer:

16 x 12=192

Step-by-step explanation:

Find the unit rate of 90 miles/2 hours, IN FEET PER SECOND! can you please do it step by step plz?

Answers

Answer:

45, 90/2 equals 45. everytime you need to find it you do miles/hours

Which of the following expressions is the inverse of the function y = 2x − 6?

Answers

Answer:

[tex] x = \frac{1}{2} y + 3[/tex]

Step-by-step explanation:

[tex]y = 2x - 6 \\ y + 6 = 2x \\ \frac{y + 6}{2} = x \\ \frac{y}{2} + 3 = x \\ \huge \red{ \boxed {x = \frac{1}{2} y + 3}}[/tex]

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