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madam [21]
2 years ago
10

6 erasers cost $6.60. Which equation would help determine the cost of 3 erasers

Mathematics
2 answers:
rewona [7]2 years ago
5 0

I think its just 6.60 divided by six, thats how many each one costs, then multiply it by 3

Hope this helps :)

IrinaVladis [17]2 years ago
3 0

Answer:

3.3

Step-by-step explanation:

because you can divide 6.60 by 6 which is 1.1 then multiply it by 3

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nekit [7.7K]

Answer:

a) 0.0016

b) 0.0224

Step-by-step explanation:

If every question has 5 possible answers, the probability of getting the correct answer by guessing would be 0.20. The probability of getting an incorrect answer would be 0.80.

a)Find the probability she lucks out and answers all four questions correctly.

To do this, Allison would have to guess right the first, second, third AND fourth answers. Therefore, we have to multiply the probabilities:

0.20 x 0.20 x 0.20 x 0.20 = 0.0016

The probability that she answers all 4 questions correctly is 0.0016.

b) Find the probability that she passes the quiz.

To pass the quiz, she has to have three OR 4 correct answers:

  1. The probability that she has 3 correct answers is: 0.20 x 0.20 x 0.20 x 0.80 (since she has to have 1 correct answer and 1 incorrect one) = .0064.
  2. We already calculated the probability that she guesses 4 answers correctly: 0.0016.

Now, we have to sum up these two scenarios:

0.0064 + 0.016 = 0.0224.

Thus, the probability that she passes the quiz is 0.0224

3 0
3 years ago
Hey! i’ll give brainliest please help
Ahat [919]

Answer:

I think it's D but im not sure

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Step-by-step explanation:

6 0
2 years ago
help please !!!Kevin wants to make a mixture that is 50% lemon juice and 50% lime juice. How much 100% lemon juice should he add
Liula [17]
So basically, he wants to make mixture where lemon=lime

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adell [148]
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First find the x intercept
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X = 16/2
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Substitute the value x and solve for y
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3 years ago
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Gre4nikov [31]
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