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
Aleonysh [2.5K]
3 years ago
11

A coin contains 9 grams of nickel and 16 grams of copper,for a total weight of 25 grams what percentage of the metal in the coin

in cooper
Mathematics
1 answer:
Yanka [14]3 years ago
5 0
16/25=64%.........
☺☺☺☺☺
You might be interested in
Ramon earns $1,835 each month and pays $53.80 on electricity. To the nearest tenth of a percent, what percent of Ramon's earning
Nitella [24]

Answer:

Sorry Iam at exam now

I know the answer but IAM writing exam

7 0
3 years ago
Solve 64-31-3.64 + 22 = 38
professor190 [17]

Answer:

51.36=38

Step-by-step explanation:

You apply all these together:

64-31-3.64 + 22=51.36

51.36=38

4 0
3 years ago
Please help me out with this one! I need step by step instructions (30 points!)
jolli1 [7]

Answer:

WAT DO U MEAN 30 POINTS UR ONLY GIVING 5

Step-by-step explanation:

ITS LITTERALLY RIGHT NEXT TO IT

8 0
3 years ago
An oil exploration firm is formed with enough capital to finance ten explorations. The probabil- ity of a particular exploration
tensa zangetsu [6.8K]

Answer:

μ = 1 The firm expects that one oil exploration will be successful.

v(x)= 0.9

Step-by-step explanation:

The first step is to define the random variable x as:

x: number of oil explorations being succesful

Then x can be take this values:

x = 0 , x =1 ... x =10

x is a binomially distributed random variable with parameters.

p = 0.1 and  n=10

And the mean or the expected value of x is:

μ = E(x) = np

Then μ = 10*0.1 = 1

And the variance of x is:

V(x) = np(1-p)

V(x) = 10(0.1)(1-0.1)= 0.9

6 0
3 years ago
PlEASE HELP ME PEOPLE HUMPTH OK ILL SAY IT PEOPLE WANT MONEY TO ANSWER PROBLEMS HERE If the mean of six nu m b e rs is 48, does
SpyIntel [72]

Answer:

No, none of the number need to be 48 for the mean to be 48. To get a mean, you add up all the number and divide it by the amount of numbers.

Example:

the mean of 10, 79, 42, 88, 19, and 50 is 48, but the actual number 48 was not part of the set.

10 + 79 + 42 + 88 + 19 + 50 = 288

288 ÷ 6 = 48

6 0
3 years ago
Other questions:
  • Jack rented a boat for one day.it cost 15.50 plus 0.35 per hour.if jack paid 16.90 in total for the boat rental.for how many hou
    8·2 answers
  • A rectangle has a width that is 7 centimeters less than its length, and its area is 330 square centimeters. What are
    5·2 answers
  • What 1.62 divided 18564/
    5·1 answer
  • 4/5 m, if m = 10<br> HURRY!!
    14·1 answer
  • the area of a triangle is 108square feet if the height is 6 less than twice the base then find the base and the height of the tr
    15·1 answer
  • At a video arcade, the action video games cost $22, which is 110% of last week’s price. What was the price last week?
    6·2 answers
  • Hey plese helppppp . Question: Evaluate: b²- 4ac. if a=5, b=-2,c=-3 ​
    6·2 answers
  • Here are Xavier's bowling scores:
    9·1 answer
  • Which of the following statements is equivalent to 18+6
    8·1 answer
  • All points of the step function f(x) are graphed.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!