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3 years ago

Please answer this correctly

Mathematics

1 answer:

Darya [45]3 years ago

6 0

Answer:

2:38 PM

Step-by-step explanation:

1 hour and 56 minutes plus 1 hour and 9 minutes is 3 hours and 5 minutes just for playing games altogether. Now, eating took 56 minutes. That means the total time it took for playing basketball and swimming and eating dinner took 4 hours and 1 minute. Finally, if dinner ended at 6:39 PM, then you would want to subtract the total time from 6:39 PM in order to find the answer. 6:39 PM minutes 4:01 gives you 2:38.

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Jason bought a jacket on sale for 50% off the original price and another 25% of the discount price. If the dragon originally cos

anzhelika [568]

Answer: Jason paid $33 for the jacket

Step-by-step explanation: 50% of 88 is 44. Because it’s percent off we subtract. 88-44=44. That’s the discount price. Now we discount the discounted price. Remember that this is NOT a 75% discount, it’s two separate discounts. 25% of 44 is 11. 44-11=33. The final price is $33.

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3 years ago

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In a box 25 cards are there and 1 to 25 numbers are written on them. one card is drawn randomly. what is the probability that it

tensa zangetsu [6.8K]

Explanation :

Given that:

In a box 25 cards are there and 1 to 25 numbers are written on them.

• One card is drawn randomly.

To Find:

• What is the probability that it is multiple of 5.

We know that:

P(E)= F/T

Where,

P(E)= Probability of an event

• F= Favourable outcomes . T = Total outcomes

We have:

F = Number of cards which are multiple of 5

Cards having the number 5, 10, 15, 20, 25 are the multiples of 5.

So, F = 5

T = Total number of cards

• T = 25

P(F) The probabilityP(E) = The probability that it is multiple of 5

Finding the probability that it is multiple of 5:

P(E)= 5/25

P(E)=1/5

Hence,

The probability that it is multiple of 5 is ⅕

6 0

3 years ago

A literature professor decides to give a 10-questiontrue-false quiz to determine who has read an as-signed novel. She wants to c

Darya [45]

Answer:

The teacher should set the score 7 as the lowest passing grade.

Step-by-step explanation:

Let X = number of correct guesses.

All the questions are of true-false format.

The probability of getting a correct answer is, p = 0.50.

The total number of questions is, n = 10.

The random variable X follows a Binomial distribution with parameters n = 10 and p = 0.50.

The probability mass function of X is:

$P(X=x)={10\chose x}0.50^{x}(1-0.50)^{10-x};\ x=0,1,2,3...$

Now the teaches chose the grading scheme such that the probability of passing a student who guesses on every question is less than 0.05.

Then the probability of failing such a students is at least 1 - 0.05 = 0.95.

Compute the probability distribution of X.

Consider the probability distribution attached below.

The value of x for which P (X ≤ x) is at least 0.95 is, x = 7.

So the teacher should set the score 7 as the lowest passing grade.

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3 years ago

Does the following table show a proportional relationship between the variables x and y? x 5/6 25/6 125/6 y 2 10 50

ki77a [65]

Answer: A:Yes

Step-by-step explanation:

This table shows a proportional relationship between the variables x and y.

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3 years ago

What does 33y mean if y is 18?

Mademuasel [1]

Answer:

it means you replace y with 18 so

33(18)

so 33*18=594

Hope This Helps!!!

8 0

2 years ago

Read 2 more answers