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Y_Kistochka [10]
3 years ago
10

Is 6.43 a rational number?expain

Mathematics
1 answer:
dedylja [7]3 years ago
7 0
A rational number is any number that can be turned into a fraction, as 6.43 can be expressed as 643/100 or 1286/200, etc..., it is a rational number.


Rationals include: Whole numbers ( positive numbers , excluding fractions) , integers ( postivie and negative numbers , excluding fractions), fractions, and infinite decimals that repeat ( example 0,3333... can be expressed as 1/3 so it is a rational)
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What is the equation of a line that is parallel to -2x+3y=-6 and passes through the point (-2,0)
mr_godi [17]
First, a line that is parallel, means a line that has the same slope as the original. To find the slope of the original equation, we have to solve for y.
-2x+3y=-6
3y=2x-6
y=2/3x-2
From this equation, we can see that the slope of the line is 2/3. For every 2 units you go up, you move three units over.

Now we need to use the point (-2,0) to find the equation of the parallel line. 
y-y=m(x-x)

Plug in the point coordinates and the slope, and solve for the final equation of the line.
y-0=2/3(x+2)
y=2/3x+ 4/3
4 0
2 years ago
tamara has completed 60% of her practice time for the track meet. If she is expected to practice for 18h, how long has she alrea
anyanavicka [17]

Answer:

10h and 48min

Step-by-step explanation:

60*18=1080

1080/100=10.8

so 10.8h which means 10 hours and 48 min

4 0
2 years ago
A square has a perimeter of 4 cm. What is the length of each side?
MAXImum [283]

Answer:

1 cm

Step-by-step explanation:

Since the perimeter is 4 cm and all the sides of the square have the same length, each side must be 1 cm long.

The area of that square is 1 cm x 1 cm, which is 1 cm2.

3 0
2 years ago
Read 2 more answers
7x-3y = 10<br>-3x-8y= 5​
victus00 [196]
My answer would be y=-1
6 0
3 years ago
Complete the following statements.
Ray Of Light [21]
1.
11 16
— X — = 44
4 1

Answer to number 1. —- 44 cups.

2.
880 yards is half of 1,760. So, if 1,760 yards is 1 mile then 880 yards (1/2) is .5 mile.

Answer to number 2. —- 0.5 mile.

3.
36 7
— X — =84
1 3


Answer to number 3. —- 84 inches.



ANSWER:
1. 44 cups
2. 0.5 mile
3.84 inches

Hope this helped you understand you how to do this. Have a great day. A thank you and (or) brainliest is always appreciated. (Optional....) Goodbye!
8 0
2 years ago
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