1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alja [10]
3 years ago
5

How many ounces of pure gold are in an 18 karat gold chain that weighs 2.8 ounces?

Mathematics
2 answers:
Delvig [45]3 years ago
4 0
Pure gold is 24 Karat's so the ratio of purity 18 karat gold is:
(Number of Karats of Gold chain)/(Number of Karats of pure Gold)
this will give us:
18/24
=3/4 
The weight of pure gold in 18 Karat Gold will be:
(ratio of purity)×(Total weight of chain)
=3/4×18
=13 1/2 ounces
=13.5 ounces.

Mars2501 [29]3 years ago
4 0
<span>18 karat gold contains 75% gold, and 25% other metals in the alloy. 75% of 2.8 ounces yields a gold content of 2.1 ounces. Multiplying .75 times 2.8 will yield the correct result.</span>
You might be interested in
Simplify. x^3 ÷ x^5​
fomenos

Answer:

x^-2

Step-by-step explanation:

(x*x*x)/(x*x*x*x*x)

1/x*x

1/x^2

x^-2

3 0
3 years ago
Read 2 more answers
Construct the cumulative frequency distribution for the given data.
tino4ka555 [31]

Answer:

       Age                               Frequency                   Cumulative Frequency

 Less than 30                             27                                       27

 Less than 40                             37                                27 + 37  =  64

 Less than 50                              1 1                                 64 + 11   =  75

 Less than 60                               3                                  75 + 2   =  77

 Less than 70                               5                                   77 + 5   =  82

 Less than 80                               1                                     82 + 1  =  83

 Less than 90                              2                                    83 +2  =  85

Step-by-step explanation:

Given:

The Frequency Distribution table of ages of best actresses when award was won

To find:

Construct the cumulative frequency distribution

Solution:

In order to construct cumulative frequency distribution for the given data, each frequency from above table is added to the sum of the previous frequencies. For example, frequency for Less than 40  is 37 and the previous frequency (less than 30) is 27 so in order to calculate cumulative frequency 27 i.e. previous frequency is added to 37 (frequency of less than 30). The complete table is given above.

4 0
3 years ago
S = 1 / g t ² π, solve for t​
Finger [1]

s =   \frac{1}{g {t}^{2}\pi }

multiply through by

g {t}^{2} \pi

s \times g {t}^{2} \pi =  \frac{1}{g {t}^{2} \pi}  \times g {t}^{2} \pi

sg {t}^{2} \pi = 1

dividing through by

sgπ

{t}^{2}  =  \frac{1}{sg\pi}

t =  \sqrt{ \frac{1}{sg\pi} }

4 0
3 years ago
Read 2 more answers
Solve this using a number line.<br> 3 1/8 ÷ 1/8
sp2606 [1]
Hey there!!

25 is the answer

Hope this helps. c:
4 0
3 years ago
If 8 = x + y and y &gt; 0, then x is ___ 8.
qaws [65]
The answer is B because if 0 is < y than 8 would be equal to x

5 0
3 years ago
Other questions:
  • A box plot is another name for a histogram, true or false
    5·2 answers
  • The probability that Shania is on time for school is 1/2. Find the probability that Shania arrives on time for school for the ne
    11·1 answer
  • Bruelle exercises for 3/4 hours each day for 6 days in a row altogether how many hours does she exercise during the six days
    12·2 answers
  • What is the slope of the following line?<br><br> y-7=(x+2)
    13·1 answer
  • Whoever answers this correctly I'll give brainiest!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • ¿A cuál ecuación corresponde la expresión x=3?
    13·2 answers
  • Construct a histogram for the following data set: 11, 17, 13, 2, 22, 18, 16, 14, 16, 21, 17, 9, 9, 7, 3
    9·2 answers
  • Find the value of x.<br> 5x<br> 3x-3<br> -3<br> 24<br> 44<br> x = [?]
    5·1 answer
  • Classify the quadrilateral. A. square B. rhombus C. trapezoid D. rectangle also how do you add a picture​
    9·1 answer
  • One of the legs of a right triangle measures 13 cm and the other leg measures 7 cm. Find the measure of the hypotenuse. If neces
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!