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Reptile [31]
3 years ago
9

Please Help I’ve been stuck on these questions for a while now!

Mathematics
1 answer:
atroni [7]3 years ago
8 0

Answer:

written below for problem #2

Step-by-step explanation:

a. ratio is 12:40 since they're are 12 non fiction and 40 graphic novels

b. 40:12 (same reasoning as part a)

c. 6:40 for the ratio of science fiction to graphic novel, 12:6 for the ration of non fiction to science fiction, x:6 for the ratio of the unknown amount of fiction books to the science fiction books. (x is just there as a variable so it just represents fiction books)

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Estimate: 25.73 – 2.19<br> 24<br> 22<br> 25<br> 23
dalvyx [7]

Answer:

23

Step-by-step explanation:

25.73−2.19

=25.73−2.19

=25.73+−2.19

=23.54

8 0
3 years ago
Read 2 more answers
Divide the product of 5 and 8 by 4
Nikitich [7]

Answer:

8.75

Step-by-step explanation:

Hope I helped

6 0
3 years ago
Carrie found the difference 11/12 -- 2/3. she said * i found a common denominator 12,then subtracted the numerators to get 9/12*
nikitadnepr [17]

Answer:

She isn't correct because after you find the common denominator, the numerator needs to be changed as well, so when she multiplied the denominator of 2/3 by 4 to get 12, she also had to multiply the 2 by 4, to get 8/12, and then subtracted, because otherwise, the new fraction isn't equivalent to the original fraction.

7 0
3 years ago
Sally hopes to buy a 10 - kayak for $15,000. Describe all the numbers that when round to the nearest hundred are 15,000
Masteriza [31]

Answer:

All the numbers ranging from 14,500 to 15444 would be rounded to 15000

Step-by-step explanation:

All the numbers ranging from 14,500 to 15444 would be rounded to 15000.

How this is possible.

1) all the numbers from 0-4 are not counted as the next number when rounded off.

2) all the numbers from 5-9 are counted as the next number when rounded off.

Example Suppose we have numbers from 15- 19.

These numbers can be rounded off to 20

But numbers from 10-14 would never be rounded off to 20 instead they are rounded as 10.

Same happens in the hundreds case.

If we have numbers from 450 - 499 they can be rounded as 500

And numbers from 400 - 444 cannot be rounded as 500  but the number 445 may be rounded as 450 . When we carry  5 from units place and replace it as 450 then again 450 can be rounded to 500.

Same happens with 15000  but when are rounding nearest hundred not ten.

Thus all the numbers ranging from 14,500 to 15444 would be rounded to 15000.

7 0
3 years ago
1. What are the mean, median, mode and range of the data set givem the altitude of lakes in feet:
Aleonysh [2.5K]
First you have to put them in order from least to greatest. so....

-52, -36, -36, -27, -23, - 17, -9, -8

mean: add all the numbers and divide them by 8(the total amounts)
mean: -208/8
mean: -26

median: number in the middle of a series
*since there is an even amount of numbers you have to get the two numbers that are in the middle, add them, and then divide them by 2.
median: -27 + (-23)
median:-50/2
median: -25

mode: number that appears most often or is repeated
mode: -36

range: difference between the lowest and highest value
range: -52 - (-8)
range: -44

hope this helps and have a great day :)











8 0
3 years ago
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