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Sunny_sXe [5.5K]
2 years ago
7

A bag of marbles can be divided evenly among 2,3 or 4 friends. A) How many marbles might be in the bag? B) What is the least num

ber of marbles that can be in the bag? C) How many marbles would there be if there are between 30-40 marbles in the bag? How many marbles would each friend get?
Mathematics
1 answer:
agasfer [191]2 years ago
6 0

Answer:

a)12 b)12 c)36

Step-by-step explanation:

a)find least common multiple. the number of marbles is that number * n (where n is an integer)

b) the least common multiple. it is 4*3=...

c)12*3 =?

then just divide by 2,3,4 to get answer

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Andre ran 2 kilometers in 15 minutes, and Jada ran 3 kilometers in 20 minutes. Both ran at a constant speed. Did they run at the
Goshia [24]

Answer:

speed of Jada = 6km per hour which is not equal to

speed of Andre = 8km per hour

They did not run at same speed

Step-by-step explanation:

formula of speed = distance covered/ time taken

For Andre

Distance = 2 KM

time = 15 mins

60 mins = 1 hour

15 mins = 1/60 * 15 hour = 0.25 hours

thus,

speed = 2km/0.25 hour = 8 km per hour

Similarly for Jada

Distance = 3 KM

time = 20 mins

60 mins = 1 hour

20 mins = 1/60 * 20 hour = 1/3 hours

thus,

speed = 2km/(1/3)hour = 6  km per hour

Now we have

speed of Jada = 6km per hour which is not equal to

speed of Andre = 8km per hour

6 0
2 years ago
6 pints of a 20 percent solution of alcohol in water are mixed with 4 pints of a 10 percent alcohol in water solution. The perce
andreev551 [17]
Total Volume would be 6 + 4 = 10 pints
Let's calculate the volume of alcohol in final solution:
20% * 6 = 1.2 pints
10% * 4 = .4 pints
Total = 1.6 pints of alcohol in 10
Percentage = (1.6/10) * 100 = 16 per cent.
answer is A

4 0
2 years ago
Read 2 more answers
Pismo Beach, California, has an annual clam festival that includes a clam chowder contest. Judges rate clam chowders from local
Alborosie

Answer:

Denny's chowder wont have because the winner was picked anonymously without due fact and figure. The judges would have attached a contestant tag to the chowders prepared for the annual clam festival. The winner was declared without any reason to back up that indeed the chowder had been from Denny's chowder

B..1, Experiments are often blinded this way because of the bias of the individual measuring the experiment

2. Also lack of facts and figures to justify results

Step-by-step explanation:

Do you think that Denny’s chowder would have won the contest if the judging had not been "blind?" Explain.

Although this was not an experiment, your answer to Part (a) helps to explain why those measuring the response in an experiment are often blinded

Denny's chowder wont have because the winner was picked anonymously without due fact and figure. The judges would have attached a contestant tag to the chowders prepared for the annual clam festival. The winner was declared without any reason to back up that indeed the chowder had been from Denny's chowder.

Using your answer in Part (a), explain why experiments are often blinded in this way

1.. Experiments are often blinded this way because of the bias of the individual measuring the experiment

2. Also lack of facts and figures to justify results

6 0
2 years ago
8. In a large population, 63% of the people have been vaccinated. If 4 people are randomly selected, what is the probability tha
Ludmilka [50]
The probability that none of the four have been vaccinated is
  (1-0.63)^4 = 0.01874161

The probability that at least one has been vaccinated is the complement of this,
  ≈0.9813
3 0
2 years ago
What is the value of n in the equation –negative StartFraction one-half EndFraction left-parenthesis 2 n plus 4 right-parenthesi
fgiga [73]

Answer:

Solution to equation: n = 1

Step-by-step explanation:

We are given the following equation:

-\dfrac{1}{2}(2n + 4) + 6 = -9 + 4(2n + 1)

We have to solve the equation to find the value of n.

Solving the equation, we get,

-\dfrac{1}{2}(2n + 4) + 6 = -9 + 4(2n + 1)\\\\-\dfrac{1}{2}(2n + 4)-4(2n+1) = -9-6\\\\-n-2-8n-4 = -15\\\Rightarrow -9n = -15 + 6\\\Rightarrow -9n = -9\\\Rightarrow n = 1

Thus, value of n is 1.

4 0
2 years ago
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