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WINSTONCH [101]
2 years ago
13

Mrs. Yang is in charge of playing the music while her class plays musical chairs. In the first round, Mrs. Yang played the music

for 20 seconds. In the second round, Mrs. Yang played the music for only 4 seconds.
How many times as long did Mrs. Yang play music in the first round as in the second round?
Mathematics
2 answers:
Vika [28.1K]2 years ago
7 0

Answer:

5

Step-by-step explanation:

20 divided by 4 = 5

MrRa [10]2 years ago
6 0

Answer:

She played the music 5 times as long in the first round as she did the second round

Step-by-step explanation:

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How many periods of time, each 1/3 of an hour long, does,a 8- hour period of time represent
Sloan [31]

1/3 of an hour = 20 minutes

8 hours = 480 minutes

So to find the number of periods we divide 480 by 20. Answer is 24

4 0
2 years ago
Michael reads 12 pages of a book in 18 minutes, 8 pages in 12 minutes, and 20 pages in 30 minutes. I’d this a proportional relat
Alex73 [517]

Answer:

Y= 1.5x

Step-by-step explanation:

What you would do is divide all of the minutes by the amount of pages to find how long for each rate for one page. (ex. 18/12, Michael reads 1 page in 1.5 minutes. 12/8, Michael reads 1 page in 1.5 minutes. 30/20, Michael reads one page in 1.5 minutes) Therefore, yes it is proportional, and the equation is y=1.5x (there is no y intercept)

I hope this will help

4 0
2 years ago
Please help due right now
Nadya [2.5K]

Answer:

D

Step-by-step explanation:

7 0
3 years ago
Erin uses a spinner divided into four equal sections to decide which drink she’ll have with her lunch. The sections represent wa
lys-0071 [83]

Answer:

Part A

W W W M W W T W W L W W

W W M M W M T W M L W M

W W T M W T T W T L W T

W W L M W L T W L L W L

W M W M M W T M W L M W

W M M M M M T M M L M M

W M T M M T T M T L M T

W M L M M L T M L L M L

W T W M T W T T W L T W

W T M M T M T T M L T M

W T T M T T T T T L T T

W T L M T L T T L L T L

W L W M L W T L W L L W

W L M M L M T L M L L M

W L T M L T T L T L L T

W L L M L L T L L L L L

Part B

There are 64 possible outcomes. The sample size is 64.

Part C

To find the probability that Erin drinks lemonade one day, tea one day, and water one day, consider all the cases in which L, T, and W occur one time. Because the order doesn't matter in this scenario, these six outcomes from the list represent the desired event: W T L, T W L, T L W, W L T, L W T, and L T W.

The size of the sample space is 64. So, the probability that Erin drinks lemonade one day, tea one day, and water one day is 3/32.

Part D

To find the probability that Erin drinks water on two days and lemonade one day, we consider all the cases in which two Ws and one L occur. Because the order doesn't matter in this scenario, these three outcomes from the list represent the event: W W L, W L W, and L W W.

The size of the sample space is 64. So, the probability that Erin drinks water two days and lemonade one day is 3/64

Step-by-step explanation:

8 0
2 years ago
(3,-4, slope = undefined
Anni [7]



lines with undefined slope are vertical

equation are  in form of x constant

through the points ( 3 , -4)

the line is x=3


4 0
3 years ago
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