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3 years ago

What is 2 thirds plus 3 sevenths

Mathematics

2 answers:

Zepler [3.9K]3 years ago

6 0

23 over 21 is the right answer

23
----
21

Solnce55 [7]3 years ago

4 0

(2/3) + (3/7) =
Common denominator =21
(2/3) = (14/21)
(3/7) = (9/21)
(14/21) + (9/21) = 23/21
As a mixed number 1 2/21

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Olegator [25]

Answer:

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2 years ago

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Licemer1 [7]

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The carnival is losing (on average) $0.15 on each play

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3 years ago

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frosja888 [35]

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Step-by-step explanation:

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1 year ago

How long should an escalator be if it is to make an angle 30 with the floor and

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Step-by-step explanation:

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2 years ago

For what values of a does the equation a+x= 1+xa^2 have no solution?

Anton [14]

Answer:

We have the equation

$a+x= 1+xa^2$

we leave the terms with x on the left side of the equation and the independent terms on the right side.

$x-xa^2=1-a\\(1-a^2)x=1-a\\$

resolving for x we have that

$x=\frac{1-a}{1-a^2}$

Since we need that the equation doesn't have solution, then it is necessary that the denominator of x be 0 and this occur when $1-a^2=0\\1=a^2\\a=\pm1$

Then, for $a=\pm1$ the equation hasn't solution

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3 years ago