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NARA [144]
3 years ago
5

Suppose you like to keep a jar of change on your desk. Currently, the jar contains the following: 2323 Pennies 55 Dimes 2020 Nic

kels 1919 Quarters Copy Data What is the probability that you reach into the jar and randomly grab a dime and then, without replacement, a nickel
Mathematics
1 answer:
GaryK [48]3 years ago
7 0

Answer:

The answer is "0.081"

Step-by-step explanation:

Dimes = 55

Calculating total coins = (23+55+20+19) = 117

P(for a dime) = \frac{55}{117}

Calculating remaining coins = 116

Nickels = 20

P(for nickel draw in second) = \frac{20}{116}

P(for a dime after that a nickel, without replacement)

= \frac{55}{117} \times \frac{20}{116} \\\\=  \frac{1100}{13572} \\\\=0.081

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A new dolphin tank is being built outside of Houston. The tank will be a cylinder with a depth of 42 feet and a radius of 240 fe
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4 years ago
Read 2 more answers
5 less than a number is equivalent to 1 more than three times the number
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Answer:

x-5=3x+1 (x=-3)

Step-by-step explanation:

5 less (_-5)

than a number (x)

is equivalent to (=)

1 more than (+1)

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combine them all to get x-5=3x+1

extra:

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6 0
3 years ago
Kathy wants to paint the faces of her standard six-sided die so that each face is either red or blue. However, she does not want
Wittaler [7]

Answer:

The number of ways Kathy can paint her die is 52 ways

Step-by-step explanation:

The permutation and combination related question is answered as follows;

The number of faces in the six-sided die = 6

The number of colors available for painting the six-sided die = 2 colors

Therefore, we have, the total number of ways Kathy can paint her die, 'n', given as follows;

n = ₆P₂ + 2₄P₄ + 2₄P₃ + ₄P₂

Where;

₆P₂ = The number of ways of arranging 2 objects in 6 spaces = 30

₄P₄ = The number of ways of arranging 4 objects in 4 spaces = 1

₄P₃ = The number of ways of arranging 3 objects in 4 spaces = 4

₄P₂ = The number of ways of arranging 2 objects in 4 spaces = 12

∴ n = 30 + 2×1 + 2×4 + 12 = 52

The number of ways Kathy can paint her die, n = 52 ways.

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3 years ago
There are 2 girls and 3 boys on a camping trip. What is the ratio of girls<br> to boys on the trip?
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Answer:

2/3

Step-by-step explanation:

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