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3 years ago

9

Maria made some purchases at the Sunflower Market. She bought strawberries for $3.50, carrots for $2.25 and a bouquet of flowers

for $9.95. If sales tax is 5%, what will Maria pay altogether

1 answer:

gayaneshka [121]3 years ago

3 0

Answer:

$15.7

Step-by-step explanation:

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There are 30 balls numbered 1-30 in a bag. One is randomly selected 12 times. What is the probability of getting a prime number

Sliva [168]

Answer: The probability of getting a prime number exactly five times = 0.1908

Step-by-step explanation:

Prime numbers from 1 to 30 are 2,3,5,7,11, 13, 17, 19, 23, 29.

The probability of getting a prime number p= $\dfrac{10}{30}=\dfrac13$

Number of trials n = 12

Binomial probability formula:

$P(X=x) = \ ^nC_x p^x(1-p)^{n-x}$

, where x= number of successes

n= number of trials.

x = Number of successes

p= probability of getting one success.

The probability of getting a prime number exactly five times:

$P(X=5)=\ ^{12}C_5(\frac13)^5(1-\frac13)^{7}$

$=\frac{12!}{5!7!}(\frac1{243})(\frac{128}{2187})\\\\=0.1908$

Hence, the probability of getting a prime number exactly five times = 0.1908

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3 years ago

There are 10 balls in a bag numbered from to 10. Three balls are selected at random without replacement. a. How many different w

zhenek [66]

A) 30 possible combinations

B)1/10

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3 years ago

Jose wants new carpeting for his living room his living room is 8 m x 8 m how much carpeting does he need to buy to cover his en

Step2247 [10]

Answer:

64

Step-by-step explanation:

8 x 8 = 64

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3 years ago

Duncan is purchasing a home for $178,000. He makes a 15% down payment and obtains a 15 year fixed rate mortgage loan at 4% annua

KATRIN_1 [288]

1119.15×12=13,429.8 deposits per year
cost of principal
PVAO=13,429.8×((1−(1+0.04)^(−15))÷(0.04))=149,317.72
interest
13,429.8×15−149,317.72=52,129.28
down payment
178,000×0.15=26,700
intagible tax
178,000×0.002=356

Total cost
52,129.28+356+149,317.72+26,700
=228,503....answer

6 0

3 years ago

Cheryl is planting a row of flowers 10ft. Long in her garden.If she plants a flower every 1/3ft. How many flowers can she plant?

Ivanshal [37]

1/3 = 0.33
10 ÷ 0.33 = 30.30
she could plant 30 flowers.
(you can't have .3 of a plant so you get rid of the decimal)

8 0

3 years ago