anonymous
  • anonymous
A mechanic charges $330 for 6 hours of labor. How much would she charge for 9 hours of labor? A. $495 B. $339 C. $336 D. $345
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
B
anonymous
  • anonymous
I think you are right do you know why?
anonymous
  • anonymous
no

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anonymous
  • anonymous
divide 330 into 6
anonymous
  • anonymous
tell me what you get
anonymous
  • anonymous
55
anonymous
  • anonymous
so He charges 55 dollars an hour
anonymous
  • anonymous
then 55 * 9 =339
anonymous
  • anonymous
woops wrong srry
jdoe0001
  • jdoe0001
\(\large \begin{array}{ccllll} \$&hours \\\hline\\ 330&6\\ x&9 \end{array}\implies \cfrac{330}{x}=\cfrac{6}{9}\)
Astrophysics
  • Astrophysics
You can make a ratio \[\frac{ 330 }{ x } = \frac{6 }{ 9 }\]
anonymous
  • anonymous
you want to know how much he charges for 9 hours all you have to do is multiply the number of hours by how much is charged per hour and you will have your answer!
anonymous
  • anonymous
495
anonymous
  • anonymous
so its A
Astrophysics
  • Astrophysics
Yup
anonymous
  • anonymous
Awesome!
anonymous
  • anonymous
thankes

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