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mestny [16]
3 years ago
12

Thomas has constant speeds for both running and walking. When a down-escalator is moving, Thomas can run down it in 15 seconds o

r walk down it in 30 seconds. One day, when the escalator was broken (and stationary), it took Thomas 20 seconds to run down it. How long, in seconds, would it take Thomas to walk down the broken escalator?
ANSWER QUICK PLS ASAP
Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
5 0

.....................

tresset_1 [31]3 years ago
3 0

Answer:

40

Step-by-step explanation:

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The town Diego lives in has a population of about 16,000. Describe all the the numbers that, when rounded to the nearest hundred
Ann [662]

Answer:

All the numbers that when rounded to the nearest 100 equal 16,000 are all the numbers in a range from 15,950-16,049.

Step-by-step explanation:

3 0
3 years ago
Which is a unit rate?
anygoal [31]

Answer:

A unit rate is a rate where the second quantity is one unit , such as $34 per pound, 25 miles per hour, 15 Indian Rupees per Brazilian Real, etc. 1 minute=60 seconds1 hour=60 minutes (or) 3600 seconds1 day=24 hours (or) 1440 minutes.

Step-by-step explanation:

6 0
3 years ago
Hey, I need help with questions 1 and 2, if anyone can help, please? thanks!
Eva8 [605]

The correct works are:

  • Blue(s + h) = 2s^2 + 4sh + 2h^2 + 3.
  • \frac{Blue(s + h) - Blue(s)}{h} = 4s + 2h

<h3>Function Notation</h3>

The function is given as:

Blue(s) = 2s^2 + 3

The interpretation when Steven is asked to calculate Blue(s + h) is that:

Steven is asked to find the output of the function Blue, when the input is s + h

So, we have:

Blue(s + h) = 2(s + h)^2 + 3

Evaluate the exponent

Blue(s + h) = 2(s^2 + 2sh + h^2) + 3

Expand the bracket

Blue(s + h) = 2s^2 + 4sh + 2h^2 + 3

So, the correct work is:

Blue(s + h) = 2s^2 + 4sh + 2h^2 + 3

<h3>Simplifying Difference Quotient</h3>

In (a), we have:

Blue(s + h) = 2s^2 + 4sh + 2h^2 + 3

Blue(s) = 2s^2 + 3

The difference quotient is represented as:

\frac{f(x + h) - f(x)}{h}

So, we have:

\frac{Blue(s + h) - Blue(s)}{h} = \frac{2s^2 + 4sh + 2h^2 + 3 - 2s^2 - 3}{h}

Evaluate the like terms

\frac{Blue(s + h) - Blue(s)}{h} = \frac{4sh + 2h^2}{h}

Evaluate the quotient

\frac{Blue(s + h) - Blue(s)}{h} = 4s + 2h

Hence, the correct work is:

\frac{Blue(s + h) - Blue(s)}{h} = 4s + 2h

Read more about function notations at:

brainly.com/question/13136492

4 0
2 years ago
Write a rule for the translation of LMN to L' M' N'
Tanya [424]

Answer:

(3,1)

Step-by-step explanation:

go up by 3 and go down by 1

5 0
3 years ago
30 POINTS! 76. Find the mean of the data. 2.5 3.2 4.8 Data usage (gigabytes) 3.6 1.8 1.5 3.5 3.1 5.4 2.8 4.5​
Vlada [557]

Using it's concept, the mean of data usage is of: 3.275.

<h3>What is the mean?</h3>

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

In this problem, the 8 observations are given by:

3.6 1.8 1.5 3.5 3.1 5.4 2.8 4.5​

Hence the mean is given by:

M = (3.6 + 1.8 + 1.5 + 3.5 + 3.1 + 5.4 + 2.8 + 4.5)/8 = 3.275.

More can be learned about the mean of a data-set at brainly.com/question/24628525

#SPJ1

4 0
2 years ago
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