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Ivan
3 years ago
6

Please help me with #13 and #14! Please explain how you did it! Thanks!

Mathematics
2 answers:
natulia [17]3 years ago
7 0
#13 is the first one and #14 is the last, if need to explain, reply back plz
denis-greek [22]3 years ago
3 0

13) 2x + 5 = 2x + 11   ⇒  the 2x cancels out on both sides leaving 5 = 11 which is a false statement so there is no solution that will make it a true statement.

14) -11k + 14 = -11k - 25  ⇒ same as above.  the -11k cancels out leaving 14 = -25

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Which of the following equations has infinitely many solutions? A. 2x + 5(2x + 6) = 12x + 30 B. 2x + 5 = 2 C. 2(x + 5) + 2 = 6x
Nat2105 [25]

Answer:

A. 2x + 5(2x + 6) = 12x + 30

Step-by-step explanation:

Infinitely many solutions means the two sides of the equation will be equal to each other, so B and D can be eliminated. Distribute for A and C to check

A. 2x + 5(2x + 6) = 12x + 30

    2x + 10x + 30 = 12x + 30

    12x + 30 = 12x + 30

C. 2(x + 5) + 2 = 6x + 2(x + 2)

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Aleksandr-060686 [28]

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Now multiply miles per hour by time:

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Help me please . . . . - - - - . . - . -
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Answer:

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Let's find the hourly rate first. We can find this by dividing the amount of money he earned by the amount of hours he worked.

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He's going to earn $242.08 next week if he works 34 hours.

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3 years ago
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