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scZoUnD [109]
3 years ago
11

The sum of a rational number and a rational number is sometimes rational​

Mathematics
2 answers:
Nata [24]3 years ago
4 0

Answer:

The sum of a rational number and a rational number is ALWAYS rational

Step-by-step explanation:

N76 [4]3 years ago
3 0

Answer:

The sum of two rational numbers is rational. Here is one way to explain why it is true: Any two rational numbers can be written and , where are integers, and and are not zero. Multiplying or adding two integers always gives an integer, so we know that and are all integers.

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PointJ-2.1) and point K(45) form line segment JR. For the point P that partions JK in the ratio 3.7, what is the y-coordinate of
inessss [21]
The coordinates of point P would be (2.6, 1.6).

The ratio of the sides being 3:7 means that the segment JP would be 3/10 of the total and PK would be 7/10 of the segment.  

The slope of JK is given by finding the rise/run; in this case that is 4/2=2.  Since JP is 3/10 of the segment, we add 3/10 of the rise to the x-coordinate and 3/10 of the run to the y-coordinate:

(3/10(2)+2, 3/10(2)+1)
=(6/10+2, 6/10+1)
=(2.6, 1.6)
5 0
3 years ago
What part of 3 1/2 is 1/2 ? PLEASE HELP ASAP! I WILL REWARD WITH BRAINIEST
8090 [49]

Answer:

7 /4

Step-by-step explanation:

Simplify the expression.

Exact Form:  7 /4

Decimal Form:

1.75

Mixed Number Form:

1  3 /4

5 0
3 years ago
Read 2 more answers
A normal distribution has a mean of 60 and a standard deviation of 2. Determine the z-
a_sh-v [17]

Answer: z score is -19

Work Shown:

x = 22 is the raw score

mu = 60 is the mean

sigma = 2 is the standard deviation

z = (x-mu)/sigma = formula to find z scores

z = (22 - 60)/2

z = -38/2

z = -19

The z score of -19 means we are 19 standard deviations below the mean. Anything beyond 3 standard deviations is often considered unusual/rare as most of the data in the normal distribution is within 3 standard deviations (approximately 99.7% of the distribution)

6 0
3 years ago
Chips are $1.49 a bag. They are 27% off. What is the new price?
Firdavs [7]

Answer:

A

Step-by-step explanation:

you do 1.49 x 0.79 to find the remaining amount after the discount and it is 1.09

6 0
3 years ago
BRAINLIEST, 40 points
ollegr [7]

Answer:

A

Step-by-step explanation:

as a negitive 1/2 is closer than 3/4

8 0
4 years ago
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