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4 years ago

Leon bought a dozen daisies for $3.75. To the nearest hundredth, approximately how much did Leon pay for each daisy?

Mathematics

1 answer:

romanna [79]4 years ago

4 0

Answer: $0.31

Step-by-step explanation:

A dozen = 12

Cost of 12 daises = 3.75

Cost of one daisy = 3.75/12 = 0.3125

0.3125 to the nearest hundredth = 0.31

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3 years ago

The thrift store is selling their old DVDs. When the DVDs first came out, they sold for $19. They have now been marked down by 7

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Step-by-step explanation:

original price (100%) → $19

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the good estimate would be $1,400.

Step-by-step explanation:

Explanation with steps are in the following attachment

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3 years ago

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Step-by-step explanation:

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4 years ago

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There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the c

Firdavs [7]

I will use the binomial distrubion to find the probability.

$\displaystyle
P(A)=\binom{n}{k}p^k(1-p)^{n-k}$

------------------------------------------------------

A - selecting a red checker exactly 7 times in 10 selections

$n=7\\
k=10$

$\displaystyle
P(A)=\binom{10}{7}\cdot\left(\dfrac{12}{15}\right)^7\cdot\left(1-\dfrac{12}{15}\right)^{10-7}\\\\
P(A)=\dfrac{10!}{7!3!}\cdot\left(\dfrac{4}{5}\right)^7\cdot\left(1-\dfrac{4}{5}\right)^3\\\\
P(A)=\dfrac{8\cdot9\cdot10}{2\cdot3}\cdot\dfrac{16384}{78125}\cdot\left(\dfrac{1}{5}\right)^3\\\\
P(A)=120\cdot\dfrac{16384}{78125}\cdot\dfrac{1}{125}\\\\
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3 years ago