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
Strike441 [17]
3 years ago
9

Linda made 2 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for both necklaces w

as $8.40. If the beads cost a total of $4.20, how much did each pendant cost?
Mathematics
2 answers:
miskamm [114]3 years ago
8 0

Answer:

2.1

Step-by-step explanation:

(8.4-4.2)/2

=4.2/2

=2.1

Marina86 [1]3 years ago
4 0

Answer:

$2.10

Step-by-step explanation:

8.40-4.20=4.20÷2=2.10

You might be interested in
plz help 20 pointssss!!!!!! The length of one edge of a cube is 3 units. What is the volume of this cube in units? A) 6 cubic un
marshall27 [118]

Answer:

See answer below

Step-by-step explanation:

Hi there,

The volume of a cube is the edge length cubed:

V = a³

The edge length given is 3 u, so plug into the formula:

V = (3 \ u)³ = 27 \ u³

thanks,

4 0
3 years ago
Read 2 more answers
Which fraction represents the decimal 0. ModifyingAbove 1 2 with Bar? One-twelfth StartFraction 3 Over 25 EndFraction StartFract
mestny [16]

The considered decimal number is expressed by the fraction given by: Option C: 4/33

<h3>How to convert from decimal to fraction?</h3>

For conversion from decimal to fraction, we write it in the form a/b such that the result of the fraction comes as the given decimal. Usually, to get the decimal of the form a.bcd, we count how many digits are there after the decimal point (if its finite), then we write 10 raised to that many power as denominator, and the considered number without any decimal point as numerator.

For example:

0.99 = \dfrac{99}{10^2} = \dfrac{99}{100}

(10 raised to power k = 1 followed by k zeroes)

<h3>What is the sum of an infinite geometric series?</h3>

The sum of an infinite geometric series having the initial term "a" and the multiplication per term is done by "r" such that r < 1

is given by

S_{\infty} = \dfrac{a}{1-r}

The series would look like a+ ar+ ar^2+\cdots

For the considered case, the given decimal number is

0.\overline{12} = 0.121212\cdots

We can check all the options available one by one, so as to know which one ends up giving this pattern, or we can use another technique as shown below.

0.12121...  = (0.1 + 0.001 + 0.00001 + ... ) + (0.02 + 0.0002 + 0.000002 + ... )

Each of the two series obtained are geometric series with the multiplication factor as 1/100

Using the sum formula for evaluation of an infinite geometric series, and the fact that initial term of first series is 0.1 and that of second series is 0.02, we get:
0.121212... = \dfrac{0.1}{1-1/100} + \dfrac{0.02}{1 - 1/100} = \dfrac{1}{99/100}(\dfrac{1}{10} + \dfrac{2}{100})\\0.121212...  = \dfrac{100}{99}\times(\dfrac{10}{100} + \dfrac{2}{100})\\\\\\0.121212 ... = \dfrac{12}{99} = \dfrac{4}{33}

Thus, the considered decimal number is expressed by the fraction given by: Option C: 4/33

Learn more about geometric series here:

brainly.com/question/16037289

4 0
1 year ago
What is the volume of a cylinder, in cubic centimeters, with a height of 7 centimeters
devlian [24]

Answer:

The volume of a cylinder is 1782\ cm^3.

Step-by-step explanation:

We have,

Height of cylinder, h = 7 cm

Diameter of cylinder, d = 18 cm

Radius, r = 9 cm

It is required to find volume of cylinder. The formula of the volume of cylinder is given by :

V=\pi r^2h\\\\V=\dfrac{22}{7}\times (9)^2\times 7\\\\V=1782\ cm^3

So, the volume of a cylinder is 1782\ cm^3.

3 0
3 years ago
What is the answer? <br> A <br> B<br> C<br> D
yanalaym [24]

Answer:

I think your answer is correct

Step-by-step explanation:

5 0
2 years ago
4. How many solutions does this equation have? 10x = x*
Ad libitum [116K]

Answer:

trifi

Step-by-step explanation:

4t3 a good relationship is the same way you could get to the claire family thing you want but I have different feelings about the same way

5 0
2 years ago
Other questions:
  • A Japanese garden has a circular koi pond in the middle that has a radius of 3 feet. A rectangle with length of 16 feet and widt
    14·1 answer
  • A jar contains five blue marbles and three red marbles. Suppose you choose a marble at​ random, and do not replace it. Then you
    10·1 answer
  • Evaluate (-12)(-2) ^2
    13·1 answer
  • Will give brainliest if right
    6·1 answer
  • Does this graph represent a function
    7·1 answer
  • A circle has a diameter of 12 cm. Which of these is closest to its circumference?*
    13·2 answers
  • Someone please help me im abOUt To CrYY
    14·2 answers
  • Write a four digit whole number that is divisible by 2. Use a divisibility rule and explain how you know that your number is div
    12·2 answers
  • The sum of two numbers is 84. The difference of the two numbers is 32. What are the two numbers.
    8·2 answers
  • Kate, Alexia, and Trina just completed the 400-meter dash at the track meet. Kate finished the race 6 seconds faster than Alexia
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!