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matrenka [14]
3 years ago
13

A jar contains quarters (worth $\$0.25$ each), nickels (worth $\$0.05$ each) and pennies (worth $\$0.01$ each). The value of the

quarters is $\$10.00.$ The value of the nickels is $\$10.00.$ The value of the pennies is $\$10.00.$ If Judith randomly chooses one coin from the jar, what is the probability that it is a quarter?
Mathematics
2 answers:
denis-greek [22]3 years ago
7 0

Answer:It doesn't make sense when I try to do it,I even tried a calculator

Step-by-step explanation: IDK?

marysya [2.9K]3 years ago
3 0
40/1,240 there are 40 quarters, 200 nickels, and 1,000 pennies. simplified is 5/155
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The faces on a number cube are labled 1,2,2,3,4, and 5the number cube is rolled 114 times how many times would you expect the nu
Mrac [35]

Given:

The faces on a number cube are labeled 1,2,2,3,4, and 5.

The number cube is rolled 114 times.

To find:

How many times would you expect the number 2 to appear?

Solution:

We have,

Total outcomes = 1,2,2,3,4, and 5.

Number of total outcomes = 6

Favorable outcomes = 2 and 2

Number of favorable outcomes = 2

The probability of getting 2 is:

P(2)=\dfrac{\text{Number of favorable outcomes}}{\text{Number of total outcomes}}

P(2)=\dfrac{2}{6}

P(2)=\dfrac{1}{3}

Now, the expected number of times when 2 to appear is:

E(x)=114\times P(2)

E(x)=114\times \dfrac{1}{3}

E(x)=38

Therefore, the expected number of times is 38.

4 0
3 years ago
How to tell if vector is unit vector?
Elenna [48]
A unit vector is a vector with a magnitude of one and a direction that depends on what is given. A vector specifies both the direction and magnitude different from a scalar quantity which only specifies magnitude not direction. Magnitude refers to the numeric value.
7 0
3 years ago
Help, help!!! Please:)
andrew-mc [135]

Answer: b

Step-by-step explanation:

3 0
3 years ago
Rewrite in logarithmic form 19^2 = 361
Aneli [31]

Answer:

  \log_{19}{361}=2

Step-by-step explanation:

We know that taking logarithms performs the transformation ...

  b^e=x\\\\e\cdot\log{b}=\log{x}\quad\text{take logs}\\\\e=\dfrac{\log{x}}{\log{b}}\quad\text{divide by $\log{b}$}\\\\\log_b{x}=e\quad\text{use the change of base formula}

Then for b=19, e=2, x=361, we have

  \boxed{\log_{19}{361}=2}

8 0
3 years ago
Which of the following CAN be represented by the expression 15 + n?
butalik [34]

Answer:

The total number of students on the bus if there are 15 females and n males

Step-by-step explanation:

The total number usually means addition, as well as 15 females + n males would give you the total

3 0
3 years ago
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