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sergij07 [2.7K]
3 years ago
11

Misha found that the equation –|2x – 10| – 1 = 2 had two possible solutions: x = 3.5 and x = –6.5. Which explains whether or not

her solutions are correct? She is correct, because both solutions satisfy the equation. She is not correct, because she made a sign error. She is not correct, because there are no solutions. She is not correct, because there is only one solution: x = 3.5. help plz
Mathematics
2 answers:
lisabon 2012 [21]3 years ago
5 0

Answer:

She is not correct, because there are no solutions

Step-by-step explanation:

–|2x – 10| – 1 = 2

Add 1 to each side

–|2x – 10|  = 3

Divide by -1

|2x – 10|  = -3

An absolute value is positive and it would have to equal -3

This cannot happen so there is no solution

Dvinal [7]3 years ago
5 0

Answer:

She is not correct, because there are no solutions

Step-by-step explanation: C

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Answer and tell me how you got answer thanks.
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A) {-1,2}

Step-by-step explanation:

square both side of the equation. Then:

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x^2-x-2=0

factor:

(x+1)(x-2)=0

then:

x=-1, x=2

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10. A movie theater advertises that a family of two adults, one student, and one child between the ages of 3
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Answer:

Students ticket = $4

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Step-by-step explanation:

Let the price of the student ticket be $x and the price of a child ticket be $y.  An adult ticket costs as much as the combined cost of a student ticket and a child ticket, so the price of one adult ticket is $(x+y).

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2. If you purchase 1 adult ticket, 4 student tickets, and 2 child tickets for $23, then

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Now, solve the system of two equations:

\left\{\begin{array}{l}2(x+y)+x+y=15\\ \\(x+y)+4x+2y=23\end{array}\right.\Rightarrow \left\{\begin{array}{l}3(x+y)=15\\ \\5x+3y=23\end{array}\right.\\ \\\left\{\begin{array}{l}x+y=5\\ \\5x+3y=23\end{array}\right.\\ \\\left\{\begin{array}{l}y=5-x\\ \\5x+3(5-x)=23\end{array}\right.

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