You are charged 3 dollars per hour to rent a bike. You are charged 33 dollars to rent the bike for 7 hours. Write an equation to represent the cost to rent the bike for any number of hours.

You are charged 3 dollars per hour to rent a bike You are charged 33 dollars to rent the bike for 7 hours Write an equation to represent the cost to rent the bi class=

Respuesta :

1 hour= $3
3 times the number of hours

Ex: 5 hours= 3 times 5 = $15
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Find hour rate for 7 hours:
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Hourly charge  = $3
Hourly charges for 7 hours = 3 x 7 = $21

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Find fixed charge :
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$33-21 = $12
There is a $12 fixed rental charge.

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Form Equation:
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Let the number of hours be x.
Total cost = 12 + 3x

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Answer: Total cost = 12+ 3x
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