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3 years ago

The original price for the sweater is $80. Today it is on sale for 30% off. What is the sale price for the sweater?

Mathematics

2 answers:

konstantin123 [22]3 years ago

8 0

Answer:

Step-by-step explanation:

30 percent of 80 is 24, subtract

omeli [17]3 years ago

3 0

Answer:

Step-by-step explanation:

8 x .7=56

you get .7 by subtracting the 30 percent or .3 from the original price

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4 years ago

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The given equation is non-linear.

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3 years ago

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3 years ago

What is the probability that e) A fair coin lands Heads 6 times in a row? f) A fair coin lands Heads 4 times out of 5 flips? g)

cricket20 [7]

Answer:

e) 1.56%

f) 15.62%

h) 0.879%

g) 11.72%

Step-by-step explanation:

What we will do is solve point by point.

e) A fair coin lands Heads 6 times in a row?

We have the following:

Total number of possible outcomes = 2 ^ 6 = 64

Number of favorable outcomes = 1

Required probability = 1/64 = 1.56%

f) A fair coin lands Heads 4 times out of 5 flips

We have the following:

Total number of possible outcomes = 2 ^ 5 = 32

Number of favorable outcomes = 5C4

nCr = n! / (r! * (n-r)!)

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Required probability = 5/32 = 15.62%

g) he bit string has exactly two 1s, given that the string begins with a 1 if you pick a bit string from the set of all bit strings of length ten?

We have the following:

Total number of possible outcomes = 2 ^ 10 = 1024

Number of ways in which a position excluding the start of the string can be chosen is 9C1

Total number of favorable outcomes = 9C1

9C1 = 9! / (1! * (9-1)!) = 9

Required probability = 9/1024 = 0.879%

h)The bit string has the sum of its digits equal to seven if you pick a bit string from the set of all bit strings of length ten?

We have the following:

Total number of possible outcomes = 2 ^ 10 = 1024

For the sum of the digits to be 7 there has to be 7 ones.

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Total number of favorable outcomes = 10C7

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Required probability = 120/1024 = 11.72%

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4 years ago

The original price for the sweater is $80. Today it is on sale for ￼30% off. What is the sale price for the sweater?

The original price for the sweater is $80. Today it is on sale for 30% off. What is the sale price for the sweater?