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bonufazy [111]
3 years ago
6

A store is selling all flip-flops at 20% off their original price. What is

Mathematics
2 answers:
AURORKA [14]3 years ago
5 0

Answer:

if it sell 20 it sells30

Step-by-step explanation:

answer is 30%

Doss [256]3 years ago
5 0

Answer: $16.00

Step-by-step explanation:

100% - 20% = 80%

80% = \frac{80}{100}

\frac{80}{100} * \frac{20}{1} = 16

$16

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A random sample of n people selected from a large population will be asked whether they have read a novel in the past year. Let
kozerog [31]

Answer:

b. A binomial variable with 25 independent trials

Step-by-step explanation:

The conducted experiment is binomial experiment because outcome can be divided into success or failure. The success would be the people who read novel in the past year and also responses are independent of each other. We have to find the number of trials n in the given problem.

we are given that variance of R=6 and p=probability of success=0.4.

We know that variance of binomial distribution is

Variance=npq

where q=1-p=1-0.4=0.6.

By putting the values in variance formula, we can get the value of n.

6=n*0.4*0.6

6=0.24*n

n=6/0.24

n=25

Hence, random variable R is a binomial variable with 25 independent trials.

4 0
3 years ago
If the markup rate is 50%, then the cost of a shirt that regularly sells for $60 is $40. true or false?​
Natasha2012 [34]

Answer:

false

Step-by-step explanation:

half of 60 dollars is 30

think of it as half of 6

5 0
2 years ago
1760 yards in a mile. What does one cubic mile represent
iragen [17]
One cubic mile represent the volume of a cube with sides length equal 1 mile 

hope this helped 
3 0
3 years ago
Simplify.[2 × (10 + 5)] - 5
N76 [4]
2(10+5)−5 =(2)(15)−5 =30−5 =25 C is the answer.
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3 years ago
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katoni bought 1 1/2 dozen pencils . There are 12 pencils in a dozen . How many pencils did katoni buy?
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