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
Katen [24]
3 years ago
15

A coin contains 9 grams of nickel and 16 grams of Copper, for a total of 25 grams. What percentage of the metal is copper?

Mathematics
1 answer:
AURORKA [14]3 years ago
3 0

Answer:

The copper percentage = 64%

Step-by-step explanation:

Given

  • Nickle quantity = 9 grams of nickel
  • Copper quantity = 16 grams of nickel
  • Total quantity = 25 grams

The percentage of copper metal can be determined using the formula

Copper percentage = [Copper quantity / Total quantity] × 100

                                  = [16 / 25] × 100

                                   = 0.64 × 100

                                   = 64%

Therefore, the copper percentage = 64%

You might be interested in
Plz help me ASAP plz
Reika [66]

Answer:

Q.1: A

Q.2: B

Step-by-step explanation

6 0
3 years ago
Read 2 more answers
Need help with geometric sequences <br> 30 points
NeTakaya

Answer:

a_{n} = 6(5)^{n-1}

Step-by-step explanation:

The n th term of a geometric sequence is

a_{n} = a(r)^{n-1}

where a is the first term and r the common ratio

Here a = 6 and r = 30 ÷ 6 = 5, thus

a_{n} = 6(5)^{n-1}

8 0
3 years ago
Which number is a reasonable estimate for the sum of the equation 1,267 + 3,894 = ________? 5,000 6,000 7,000 8,000
just olya [345]

Answer:

5,000

Step-by-step explanation:

1,267 + 3,894 = 5161

7 0
3 years ago
Read 2 more answers
What is the y-intercept of the function f(x) = -3x<br> Ο<br> Ο<br> on who wire on<br> Ο<br> Ο
morpeh [17]

Answer:

see the explanation

Step-by-step explanation:

we know that

The y-intercept is the value of the function when the value of x is equal to zero. Also is called the initial value of the function

I will analyze two cases

Part 1) we have

f(x)=-3x

so

For x=0

substitute

f(0)=-3(0)=0

therefore

The y-intercept is the point (0,0)

Part 2) we have

f(x)=-3^x

so

For x=0

substitute

f(0)=-3^0=-1

therefore

The y-intercept is the point (0,-1)

6 0
3 years ago
What is 25.5 - 15.75?
vampirchik [111]

Answer:

9.75

25.5-15.75=9.75

5 0
3 years ago
Read 2 more answers
Other questions:
  • 7. It is best to save _____ months of fixed expenses for an emergency fund. (1 point)
    7·2 answers
  • The sum of three numbers is 125 . The first number is 5 more than the third. The second number is 3 times the third. What are th
    6·2 answers
  • a card is drawn from a standard 52-card deck. what is the probability that the card is a red jack, given that the card is a face
    11·1 answer
  • a recipe calls for 2/4 of a cup of flour to make one batch of doughnuts. if Cecilia wants to make 9 batches of doughnuts how muc
    5·2 answers
  • Joey has a beach ball with a radius of 20 cm. What volume of air will it hold when fully inflated? [Round to nearest tenth.] A)
    8·2 answers
  • What is the resipercol of 70/30
    12·1 answer
  • how much must you deposit in an account that pays 8% interest, compounded monthly, to have a balance of $1000 after 3 years?
    8·1 answer
  • Bro can someone help pleaseeee
    9·1 answer
  • A slope-intercept equation of the line whose graph is perpendicular to
    6·1 answer
  • Of the 44 players attributed to a playwright 11 are comedies 17 are tragedies and 16 are histories if one play is selected at ra
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!