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Ugo [173]
2 years ago
14

Is 5/8 a irrational number?

Mathematics
2 answers:
jok3333 [9.3K]2 years ago
5 0
No 5/8 is a rational numbe.

NARA [144]2 years ago
3 0
Irrational means a number cannot be written as a ratio or simple fraction.
Examples of this are π, √2, repeating decimals, etc.

Rational means a number can be written as a ratio or simple fraction.
Examples of this are integers, fractions like 1/3, 86/100, percents, √4, etc.

5/8 is rational because it is a simple fraction and is another way of writing the ratio 5:8.
So no, 5/8 is not an irrational number.

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Right now Seth's age is 4/5 the age of his brother Eric. Twenty-one years ago, Eric was twice as old as Seth. What are their age
lana [24]

Answer:

          Present Time                                                                

Let X= Eric's age                                                            (4/5)X= Seth's age

Question:  What are their ages now?________________________________________________________________________

                                             Past (21 years ago)

X-21 =Eric's age                                                                (4/5)X-21=Seth's age

2*[4/5(X-21]=Eric's age

Therefore, X-21= 2*[4/5(X)-21]=Eric's age           Substitution

_______________________________________________________________________

X-21= 8/5 X  - 42         Solve for "X" by adding 42 to both sides.

X-21+42=(8/5) X

X+21 = (8/5)X              Subtract "X" from both sides.

21=(3/5)X                    Multiply both sides of equation by reciprocal of (3/5), which is 5/3

21*(5/3)= X                  Finish the problem to find value of "X," which is Eric's age.  

                                   Then find  4/5 (X)= Seth's age  

8 0
2 years ago
Read 2 more answers
Similar triangles what the answer
anzhelika [568]

Answer:

x=8

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
How many meters are in a exameter?
xz_007 [3.2K]

Answer:

1E18 OR 10^18

Step-by-step explanation:

The formula is multiply the length by 1e+18

8 0
3 years ago
Hello there, <br><br> can someone please help me with this question
monitta

Answer:

10 sides.

Step-by-step explanation:

Two same interior angles + 72 degrees = 360.

Thus, the interior angle of the polygon is \frac{360-72}{2} =144.

The formula to find the interior angle of a polygon is \frac{180(n-2)}{n}

\frac{180(n-2)}{n} =144

Multiply both sides by n:

\frac{180\left(n-2\right)}{n}n=144n

180\left(n-2\right)=144n

Expand:

180n-360=144n

Add 360 to both sides:

180n-360+360=144n+360

180n=144n+360

Subtract 144n from both sides:

180n-144n=144n+360-144n

36n=360

Divide both sides by 36:

\frac{36n}{36}=\frac{360}{36}

n=10

7 0
2 years ago
If you have 8 marbles in the bag (5 blue and 3 green) and you draw 2 with replacement, what is the theoretical probability that
Readme [11.4K]

Answer:

d.39%

Step-by-step explanation:

Loki told me

But really, 39% should be correct

3 0
2 years ago
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