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Delvig [45]
2 years ago
14

A factory whistle blows every 30 minutes. The clock tower chimes every 15 minutes. If they both sounded at 1:00 p.M.,at what tim

e will you hear them both at the same time again?
Mathematics
1 answer:
madam [21]2 years ago
7 0

Answer:

1.30 p.M.

Step-by-step explanation:

The factory whistle blowed at 1:00 p.M, and it blows every 30 minutes, so it will blow again at 1:30 p.M.

The clock tower chimed at 1.00 p.M., and it chimes every 15 minutes, so it will chime again at 1:15 p.M, and after that, it will chime again at 1:30 p.M.

So, you will hear them both at the same time at 1:30 p.M.

We can also solve this problem using LCM:

the least commom multiple between 15 and 30 is 30, so we just need to sum 30 to the inicial time (1:00 p.M.), so the time they will "find each other" again is 1.30 p.M.

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An artist plans to sell $300 of prints online each week. This month, she is within $22 of her goal.
monitta

The minimum and maximum amounts that the artist received for her products are 278 and 322

<h3>Part A: Define a variable and write an absolute value equation to represent the scenario.</h3>

Let the number of prints remaining be x.

The given parameters are:

Total = 300

Amount = 22 within her goal

So, we have the following absolute value equation

|x - 300| = 22

<h3>Part B: Solve the equation, showing all steps.</h3>

In (a), we have:

|x - 300| = 22

Remove the absolute bracket

x - 300 = 22 and x - 300 = -22

Add 300 to both sides

x = 322 and x = 278

<h3>Part C: What are the minimum and maximum amounts that the artist received for her products?</h3>

The minimum and maximum amounts that the artist received for her products are 278 and 322

Read more about absolute value equation at

brainly.com/question/17795998

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3 0
2 years ago
In a recent​ study, volunteers who had 8 hours of sleep were three times more likely to answer questions correctly on a math tes
Shalnov [3]

Answer:

Step-by-step explanation:

Sleep Deprivation

In a recent study, volunteers who had 8 hours of sleep were three times more likely to answer correctly on a math test than were sleep-deprived participants.

(a) Identify the sample used in the study.

(b) What is the sample's population?

(c) Which part of the study represents the descriptive branch of statitics?

(d) Make an inference based on the results of the study?

Solution

A. The samples used is the hours of sleep and math test scores of the volunteers

B. The samples population is hours of sleep and math test scores of people in general

C. The part of the study that represent the descriptive branch of statistics is "three times more likely"

D.Inference: To perform well in a math test, a person should get at least 8 hours of sleep the night before.

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No, they are parallel.
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The answer is P to A prime is 3 I think

Good luck!
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