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3 years ago

Todo número decimal se puede transformar en fracción?

Mathematics

1 answer:

LiRa [457]3 years ago

8 0

Answer:

sì

Step-by-step explanation:

You can turn a decimal into a fraction.

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2/5n+1/10=1/2(n+4) is this no solution?

Anarel [89]

$\dfrac{2}{5}n+\dfrac{1}{10}=\dfrac{1}{2}(n+4)\ \ \ |\cdot10\\\\10\cdot\dfrac{2}{5}n+10\cdot\dfrac{1}{10}=10\cdot\dfrac{1}{2}(n+4)\\\\2\cdot2n+1=5(n+4)\ \ \ \ |\text{use distributive property}\\\\4n+1=(5)(n)+(5)(4)\\\\4n+1=5n+20\ \ \ |-1\\\\4n=5n+19\ \ \ \ |-5n\\\\-n=19\ \ \ |\cdot(-1)\\\\\boxed{n=-19}$

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3 years ago

A stack of cards is numbered 1 to 21. Leilani pulls one card from the stack. What is the best approximation for the probability

arlik [135]

Answer:

The approximation is 0.2( real value is 0.19)

Step-by-step explanation:

In this question, we are to calculate the best approximation if in a pack of cards labeled 1 to 21 , the card selected is a multiple of 5

First we know that the total number of options in our sample space is 21; from 1 to 21

now let’s get the multiples of 5. we have 5,10,15 and 20

The probability of selecting a multiple of 5 is thus; 4/21 . This can be approximately be said to be 0.2 ( actual value is 0.19)

7 0

3 years ago

Answer The Factorial (17-12)

Kamila [148]

(17-12) is equal to 5

8 0

3 years ago

Please answer asapWhat is the measure of an exterior angle of a regular 13-sided polygon? Enter your answer as a decimal in the

sukhopar [10]

Answer:

Step-by-step explanation:

it is given by the formula=4× 90/ n

where n = number of sides

exterior angle= 4 x 90/13

=360/13= $27.7$ °

8 0

3 years ago

Solve for x and y. 7x-4 # 4y+8 24# + 31

Darina [25.2K]

Answer:

7x-4 = -28

4y+8 = 4(y + 2)

Step-by-step explanation:

3 0

2 years ago