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Naddik [55]
2 years ago
12

Nan says 21/4 is equal to 5 1/4. Dorothy says it is equal to 4 1/5. Who is correct? Show your work to prove the right answer.

Mathematics
2 answers:
Nostrana [21]2 years ago
5 0

Answer: Nan

Step-by-step explanation:

21 divided by 4 is 5.25

if you turn that into a fraction, it will be 5 1/4.

if a decimal ends in .25 it will be equivalent to the fraction 1/4

think of it like with quarters, four of them make 1.00 and on quarter makes .25

White raven [17]2 years ago
4 0

Answer:

21/4 is equal to 5 1/4

Step-by-step explanation:

converting improper fraction to mixed fraction

21/4 = (4*5 + 1 )/ 4 = 5 1/4

and 4 1/5 = (4*5 + 1) / 5  = 21 / 5

so Nan is correct

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Find x in the figure.<br><br><br> A) x = 44<br><br> B) x = 16<br><br> C) x = 22<br><br> D) x = 66
MakcuM [25]

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Anuta_ua [19.1K]

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8 0
2 years ago
|x2+x-20<br> 22-11x+28<br> e:<br> x2-x-30<br> 3x-18
elena-s [515]

Answer:

x2 - 10x - 1994

Step-by-step explanation:

Step  1  :

Trying to factor by splitting the middle term

1.1     Factoring  x2-10x-1994

The first term is,  x2  its coefficient is  1 .

The middle term is,  -10x  its coefficient is  -10 .

The last term, "the constant", is  -1994

Step-1 : Multiply the coefficient of the first term by the constant   1 • -1994 = -1994

Step-2 : Find two factors of  -1994  whose sum equals the coefficient of the middle term, which is   -10 .

     -1994    +    1    =    -1993

     -997    +    2    =    -995

     -2    +    997    =    995

     -1    +    1994    =    1993

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Final result :

 x2 - 10x - 1994

Processing ends successfully

plz mark me as brainliest :)

6 0
3 years ago
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