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Kay [80]
4 years ago
5

28 points to answer this questio(these are my last points please help)

Mathematics
1 answer:
Bad White [126]4 years ago
6 0

Answer:

It is not direct variation.

Step-by-step explanation:

In a direct variation, each y value divided by its corresponding x-value gives the same quotient, which is the constant of variation. Let's try two y-values and their corresponding x-values.

11/7 = 1.571428...

13/8 = 1.625

Since the two quotients above are different, there is no constant of variation, and the relation is not direct variation.

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three different are rung at intervals of 36 minutes 40 minutes and 48 minutes if they were rung together at 9 a.m. at what time
Lena [83]

To find the time in which all the bells ring together, we need to find the LCM of 36,40,48.

Prime factorization of 36=2×2×3×3

Prime factorization of 40=2×2×2×5

Prime factorization of 48=2×2×2×2×3

Hence, LCM of 36,40,48=2×2×2×2×3×3×5=720 seconds.

 

720seconds=  

60

720

​

minutes=12minutes

Hence, all the bells will ring together after 12 mi

6 0
3 years ago
Read 2 more answers
Simplify the equation -4(2x-4)
marin [14]

Answer:

-8x + 16

Step-by-step explanation:

This is called expanding brackets in algebra

1. you need to multiply the numeral on outside of the brackets with each of thosse on the inside      

-4 x 2x = 8x

-4 x -4 = 16

4 0
3 years ago
Paulo is creating a confidence interval based on sample data for the percentage of Americans that own a dog. His work is shown b
Gekata [30.6K]

Answer:

Checked on edg. , the answer is A. Thanks!

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
PLEASE ANSWER ASAP! I'M GIVING A LOT OF POINTS!
nikdorinn [45]
In this question you need to isolate j. First you multiply 11 on both sides to make 3 + j not a fraction anymore.

3 + j = 22.
Then you isolate j by subtracting 3 on both sides since you must cancel the 3's out to isolate j. Then you get an answer of j = 19
7 0
3 years ago
What is the grade if there are 85 questions and u miss 9
Irina18 [472]
If you miss 9 questions, the how many did you get right? 

85 - 9 = 76

So now you got 76 out of 85 correct or 76/85...

Now if you just do the fractional division that is described by the fraction you will get the answer.  The fraction bar literally means "divided by", so the fraction means...

76 divided by 85 which equals...

.8941

Now to convert to percentage we multiply by 100 (move the decimal 2 places to the right)

.8941 x 100 = 89.41%  Round to nearest one percent...

89%

 
5 0
3 years ago
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