Ethan rented a mountain bike from a rental shop. T... | Free GMAT Practice Question | GMAT Panda

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Ethan rented a mountain bike from a rental shop. The charge was 8 dollars for the first hour and 5 dollars for each additional hour. If Ethan paid a total of 43 dollars, excluding sales tax, how many hours did he rent the bike?

Explanation	Calculations	Help
$We create a variable to represent the total number of hours Ethan rented the bike.$	$h = number of hours Ethan rented the bike$	Theory & Tactics Method Card TRANS1-A Click to view full details
$We translate "8 dollars for the first hour", "5 dollars for each additional hour", and "43 dollars" into a mathematical equation.$	$8 + 5 (h - 1) = 43$	Theory & Tactics Method Card TRANS1-B Click to view full details
$We isolate the variable and solve the linear equation.$	$5 (h - 1) = 43 - 8 5 (h - 1) = 35 h - 1 = \frac{35}{5} h - 1 = 7 h = 8$	Theory & Tactics Method Card EQUA1-A Click to view full details

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D

Ethan rented a mountain bike from a rental shop. The charge was 8 dollars for the first hour and 5 dollars for each additional hour. If Ethan paid a total of 43 dollars, excluding sales tax, how many hours did he rent the bike?

Explanation	Calculations	Help
$We create a variable to represent the total number of hours Ethan rented the bike.$	$h = number of hours Ethan rented the bike$	Theory & Tactics Method Card TRANS1-A Click to view full details
$We translate "8 dollars for the first hour", "5 dollars for each additional hour", and "43 dollars" into a mathematical equation.$	$8 + 5 (h - 1) = 43$	Theory & Tactics Method Card TRANS1-B Click to view full details
$We isolate the variable and solve the linear equation.$	$5 (h - 1) = 43 - 8 5 (h - 1) = 35 h - 1 = \frac{35}{5} h - 1 = 7 h = 8$	Theory & Tactics Method Card EQUA1-A Click to view full details

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D