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lozanna [386]
2 years ago
8

Describe and correct the error in solving the following rational equation , plz help!!!!!

Mathematics
1 answer:
aleksley [76]2 years ago
5 0

First of all, x cannot ever equal -1 because if it does then in the original equation you'd be dividing by 0, which is not possible. anything divided by 0 is undefined.

I think the error was in the second step: x(x+1) = 2(x+1) because they didn't need to go from the first step to there. I'm assuming they multiplied both sides of the equation with (x+1) to get rid of the fraction, but since both sides have (x+1) as the denominator the (x+1) would've cancelled out instead of multiplying with the numerator.

Correction:

\frac{x}{x+1} = \frac{2}{x+1}\\(\frac{x+1}{1}) (\frac{x}{x+1}) = (\frac{2}{x+1})(\frac{x+1}{1}) \\x = 2

as u can see, in the second step of this correction, the (x+1)s on both sides cancel out so only the numerators remain.

Hope this helps!

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A box without a top is made from a rectangular piece of cardboard, with dimensions 27 centimeters by 18 centimeters, by cutting
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8 0
3 years ago
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Jason and his children went into a movie theater where they sell drinks for $4 each and pretzels for $5 each. Jason has $65 to s
klemol [59]

Answer:

Number of drink = 5

Number of pretzel = 9

Step-by-step explanation:

Given:

Cost of each drink = $4

Cost of each pretzel = $5

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Find:

Number of drink and pretzel

Computation:

Number of drink = x

Number of pretzel = 14 - x

So,

x(4) + (14-x)5 = 65

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x = 5

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Number of pretzel = 14 - x

Number of pretzel = 14 - 5 = 9

4 0
2 years ago
Read 2 more answers
PLease help!!!! i really please hep
n200080 [17]

\pink{1}^{st}\mathtt{Row\ :-} missing letter is 2

\pink{2}^{nd}\mathtt{Row\ :-} missing letter is 3

\pink{3}^{rd}\mathtt{Row\ :-} missing letter is 1

Hope it is helpful to you ☺️

5 0
2 years ago
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