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Shtirlitz [24]
3 years ago
7

The auditorium has five doors. Three doors are only entrances; one door is only an exit; and the fifth door can be used to eithe

r enter or exit. In how many different ways can someone enter then leave the auditorium
Mathematics
1 answer:
Neko [114]3 years ago
4 0

Answer:

8 different ways

Step-by-step explanation:

To find how many different ways can someone enter then leave the auditorium, we need to find how many ways can someone enter, how many ways can someone leave, and then multiply these possibilities:

Number of ways that someone can enter: 4 (3 doors are only entrance and 1 door is entrance and exit)

Number of ways that someone can leave: 2 (1 door is only exit and 1 door is entrance and exit)

So the number of different ways that someone can enter and leave the auditorium is 4*2 = 8

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tangare [24]

Answer:

E, needs more info to be determined

Step-by-step explanation:

We know that Kai takes 30 minutes round-trip to get to his school.

One way is uphill and the other is downhill.

He travels twice as fast downhill than uphill.

This means that uphill accounts for 20 minutes of the round-trip and downhill accounts for 10 minutes of his trip.

However, even with this information, we do not know how far his school is.

In order to figure out how far away his school is, we would need more information about the speed at which Kai is traveling.

Simply knowing that he travels twice as fast downhill is not enough.

This question could only be solved by knowing how many miles Kai travels uphill or downhill in a given time.

3 0
3 years ago
Arnold can read 3 pages in 7 minutes. Brenda can read 8 pages in 14 minutes. Who is the faster reader? Justify your answer.
Mrac [35]

Answer:

Brenda

Step-by-step explanation:

You can divide the number of pages by the number of minutes to find the amount of minutes it takes to read 1 page. For Arnold, 3 pages / 7 minutes = 1 page per approximately 0.43 minutes. For Brenda, 8 pages / 14 minutes = 1 page per approximately 0.57 minutes. Brenda reads slightly faster since 0.57 > 0.43

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3 years ago
In ΔXYZ, z = 81 cm, ∠Y=139° and ∠Z=6°. Find the length of y, to the nearest 10th of a centimeter.
Delicious77 [7]

Answer:

508.4

Step-by-step explanation:

This is on delta math

3 0
3 years ago
Read 2 more answers
8. What's the GCF of *<br> (1 Point)<br> 4x2 - 6x + 8
Gre4nikov [31]

Answer:2

Step-by-step explanation:

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3 years ago
Given that € 1 = £0.72<br> a) How much is € 410 in £?<br> b) What is the £ to € exchange rate?
Alekssandra [29.7K]

Answer:

a) 295.2

Step-by-step explanation:

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€410=x

x=€410×£0.72

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3 years ago
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