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Liula [17]
3 years ago
13

How can you use 1300 divided by 13 to help you find 1,287 divided 13

Mathematics
1 answer:
tiny-mole [99]3 years ago
6 0

Answer:

Step-by-step explanation:

This question is about the benefits of estimation.

1300/13 is easy and results in 100.

1287/13 can be approximated by 1300/13:  1287/13 ≈ 100.

Actually, 1287 = 1300 - 13 = 13(99); just subtract 1 from 100.  

So:  1287/13 = 1300 - 13 = 1287.  A nice bit of mental math!

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Lostsunrise [7]
North American Time Zones and GMTWeather observations are always taken with respect to time. Thus all observations have a corresponding time, and that time is reported along with the measurement. By convention, weather scientists use the twenty four hour clock, and use one time zone, Greenwich Mean Time (GMT). This time is also known as Universal Time (UTC). To convert to local time, we must know the time difference between GMT and local time for both standard time and summertime (daylight savings time). Not all states use daylight savings time in the summer.

The Time Zones across North America and Pacific from East to West are:

Standard Daylight Savings Time Time Atlantic Eastern EST EDT Central CST CDT Mountain MST MDT Pacific PST PDT Alaska Hawaii Standard time:

GMT ATL EST CST MST PST ALA HAW difference -4 -5 -6 -7 -8 -9 -10 00 8P* 7P* 6P* 5P* 4P* 3P* 2P* 01 9P* 8P* 7P* 6P* 5P* 4P* 3P* 02 10P* 9P* 8P* 7P* 6P* 5P* 4P* 03 11P* 10P* 9P* 8P* 7P* 6P* 5P* 04 12A 11P* 10P* 9P* 8P* 7P* 6P* 05 1A 12A 11P* 10P* 9P* 8P* 7P* 06 2A 1A 12A 11P* 10P* 9P* 8P* 07 3A 2A 1A 12A 11P* 10P* 9P* 08 4A 3A 2A 1A 12A 11P* 10P* 09 5A 4A 3A 2A 1A 12A 11P* 10 6A 5A 4A 3A 2A 1A 12A 11 7A 6A 5A 4A 3A 2A 1A 12 8A 7A 6A 5A 4A 3A 2A 13 9A 8A 7A 6A 5A 4A 3A 14 10A 9A 8A 7A 6A 5A 4A 15 11A 10A 9A 8A 7A 6A 5A 16 12P 11A 10A 9A 8A 7A 6A 17 1P 12P 11A 10A 9A 8A 7A 18 2P 1P 12P 11A 10A 9A 8A 19 3P 2P 1P 12P 11A 10A 9A 20 4P 3P 2P 1P 12P 11A 10A 21 5P 4P 3P 2P 1P 12P 11A 22 6P 5P 4P 3P 2P 1P 12P 23 7P 6P 5P 4P 3P 2P 1P * represents previous day (i.e. 03 hours 23 January 93 is 8PM-MST 22 January) Summertime (Daylight savings time) for those states that observe daylight savings time. For those that do not, use the standard time table all year:

<span> GMT EDT CDT MDT PDT difference -4 -5 -6 -7 00 8P* 7P* 6P* 5P* 01 9P* 8P* 7P* 6P* 02 10P* 9P* 8P* 7P* 03 11P* 10P* 9P* 8P* 04 12A 11P* 10P* 9P* 05 1A 12A 11P* 10P* 06 2A 1A 12A 11P* 07 3A 2A 1A 12A 08 4A 3A 2A 1A 09 5A 4A 3A 2A 10 6A 5A 4A 3A 11 7A 6A 5A 4A 12 8A 7A 6A 5A 13 9A 8A 7A 6A 14 10A 9A 8A 7A 15 11A 10A 9A 8A 16 12P 11A 10A 9A 17 1P 12P 11A 10A 18 2P 1P 12P 11A 19 3P 2P 1P 12P 20 4P 3P 2P 1P 21 5P 4P 3P 2P 22 6P 5P 4P 3P 23 7P 6P 5P 4P * represents previous day (i.e. 03 hours 23 June is 9PM-MDT 22 June)</span>
3 0
3 years ago
What is the difference in the areas of a circle with diameter 4 m and a circle with diameter 6 m?
lidiya [134]
Hello!

To solve this you need to use the equation to find the area of a circle which is

A =  \pi  r^{2}

A is area
r is radius

Solve both circles
------------------------------------------------------------------------------------------------------
Circle 1
A =  \pi  4^{2}

Square the number

A = 16 \pi
------------------------------------------------------------------------------------------------------
Circle 2

A = \pi  6^{2}

Square the number

A = 36 \pi
------------------------------------------------------------------------------------------------------
Finding the answer

To get the answer you subtract the numbers

36 \pi  - 16 \pi  = 20 \pi

The difference is 20  \pi which is about 62.83 units

Hope this helps!
5 0
3 years ago
katie has read 34% of her book. if she has read 85 pages, does she have more than or fewer than 125 pages left to read?
Pepsi [2]
Okay so first I just go to the wording of the first part, reading it again as something like  "85 is 34% of what number?" Then I translate it by putting an = for the "is", an x (times) for the "of", and a variable, w for "what number". Because it's a percent, we get rid of the % sign by writing 34/100, or .34 . Then we just have:
85=.34 x a
Divide off the .34
a=250
Now for the second part. 250 is the total number of pages, so subtract 85 to get the number of pages she hasn't read.
250-85=165
So she has more than 125 pages left.
5 0
4 years ago
A garden table and a bench cost $985 combined. The garden table costs $35 more than the bench. What is the cost of the bench?
Papessa [141]
985-35=950, 950÷2=475, 475+35=510, 510 and 475
3 0
4 years ago
Read 2 more answers
38165 use each digit twice,make the smallest 5 digit number.​
Maurinko [17]

Answer:

I am not sure, but I think

11335 could be the answer...

7 0
3 years ago
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