3 years ago

3.) Forty percent of a number is equal

Mathematics

1 answer:

meriva3 years ago

8 0

D

0.4 multiplied by x would give you the percentage and putting x over 2 would give you half of that number

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What’s the answer plz hurry!

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Answer:

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Step-by-step explanation:

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3 years ago

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A certain type of flashlight requires two type-D batteries, and the flashlight will work only if both its batteries have accepta

VikaD [51]

Answer: Our required probability is 0.167.

Step-by-step explanation:

Since we have given that

n = 15

Probability of success p = 80% = 0.8

Probability of failure q = 20% = 0.2

We need to find the probability that at least fourteen will work.

So, by Binomial distribution, we get that

$P(X\geq 14)=P(X=14)+P(X=15)\\\\P(X\geq 14)=^{15}C_{14}(0.8)^{14}(0.2)+^{15}C_{15}(0.8)^{15}\\\\P(X\geq 14)=0.167$

Hence, our required probability is 0.167.

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3 years ago

3/8 + 2 1/2 <br><br> pls help!!! make sure to show work. thanks :)

dimaraw [331]

Answer:

2 7/8

Step-by-step explanation:

Let's convert to common denominator

3/8 = 3/8

2 1/2 = 2 4/8

3/8 + 2 4/8 = 2 7/8

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

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