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
alina1380 [7]
3 years ago
10

A bag of 40 marbles had 8 white marbles.What is the probabilty of picking a white marble

Mathematics
1 answer:
weeeeeb [17]3 years ago
4 0

Answer: 8 / 48 or 1 / 6 (simplified).

Step-by-step explanation:

There are 48 marbles in the bag.

8 out of the 48 marbles are white, that's why the probability is 8/48 or 1/6.

You might be interested in
EFGH is translated 1 unit to the right and 5 units down.
myrzilka [38]

Answer:

C I got it right on the test I took and I had the same question.

Step-by-step explanation:

 

6 0
3 years ago
Read 2 more answers
The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT dt equals negative k times the quantity T min
Maslowich

Answer:

67.3°C

Step-by-step explanation:

A = 25, T(0) = 100, T(1) = 90, find T(4)

dT/dt = -k(T - A)

d(T - A)/dt = -k(T - A)

d(T - A)/(T - A) = -k dt

ln(T - A) = lnC - kt

T(t) -A=Ce^{-kt}\\T(t) = A + Ce^{-kt} = 25 + Ce^{-kt}\\T(0) = 25 + C = 100\\C=75

T(t) = 25 + 75e^{-kt}\\T(1) = 25 + 75e^{-k} = 90\\75e^{-k} = 65\\e^{-k} = \frac{65}{75}, k = ln\frac{75}{65} = 0.1431\\T(t) = 25+75e^{-0.1431t}\\T(4) = 25+75e^{-0.1431\times4} = 67.3

4 0
2 years ago
Answer the following questions.
Alona [7]
The answer for this one is $62.04
7 0
2 years ago
Select all polynomials that have (x-3) as a factor.
Alchen [17]

Answer:

Below.

Step-by-step explanation:

Substitute x = 3 into each polynomial and see if the value of the polynomial is zero. If it is zero then x-3 is a factor.

Try number 1:

a(x) = x^3 - 2x^2 - 4x + 3

a(3) = 3^3 - 2(3)^2 - 4(3) + 3

= 27 - 2(9) - 12 + 3

= 27 - 18 - 12 + 3

= 9 - 18 - 9

= 27 - 27

= 0

So a(x) has (x-3) is a factor of a(x)

The other 3 polynomials are solved in the same way.

8 0
2 years ago
david counts the quarters in his change jar. He has 24 more quarters than his brother Rob. if r is the number of quarters Rob ha
denis-greek [22]
Rob has R quarters, and David has R + 24 or 24 more than rob, so together they have 2R+24
8 0
3 years ago
Other questions:
  • Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution se
    5·2 answers
  • the weight of four puppies are shown below which list show these weights in order from least to greatest
    13·1 answer
  • A golf ball travels a distance of 600 feet as measured along the ground and reaches an altitude of 200 feet. If the origin repre
    15·2 answers
  • I need help please<br> Thank you
    12·2 answers
  • Please help me<br> I don’t know this
    14·1 answer
  • Arthur received $150 for his birthday this year. This was $10 less than half the amount he received last year. How much money di
    6·2 answers
  • Ryan and Sheila are preparing to get married. Sheila has a car payment of $297.00 per month, which is 9% of her monthly income.
    12·1 answer
  • If p and q vary inversely and p is 26 when q is 9, determine q when p is equal to 18.
    15·1 answer
  • PLEASE HELPP i’ll mark u brainliest
    15·1 answer
  • The terminal side of angle θ intersects the unit circle in the first quadrant at (16/19,y). What are the exact values of sinθ an
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!