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horrorfan [7]
3 years ago
13

Chang made $156 for 13 hours of work at the same rate, how many hours would he have to work to make $108?

Mathematics
1 answer:
sdas [7]3 years ago
8 0

Answer:

  9 hours

Step-by-step explanation:

"At the same rate" means time and wages are proportional.

  time/wages = t/$108 = (13 h)/$156

  t = 108(13 h)/156 . . . . . . . . . . . . . . . units of dollars cancel

  t = 9 h

Chang would have to work 9 hours to make $108.

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Step-by-step explanation:

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3 years ago
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sleet_krkn [62]

Answer: p = 6


Step-by-step explanation:

HI !


 px + 3y - ( p-3)=0


a₁ = p , b₁ = 3 , c₁ = - (p-3)


=====================


12x + py - p=0


a₂ = 12  , b₂ = p , c₂ = -p


since , the equations have infinite solutions , 


a₁/a₂ = b₁/b₂ = c₁/c₂


p/12 = 3/p =  p-3/p



--------------------------------------


p/12 = 3/p


cross multiply ,


p² = 36


p = √36

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for the value of p = 6 , the equations will have infinitely many solutions





5 0
3 years ago
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elena-s [515]

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Step-by-step explanation:

x^2 - 7x - 34 - 10 = 0

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6 0
2 years ago
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Murljashka [212]
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3 years ago
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Papessa [141]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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