The toll $T$, in dollars, for a truck using a cert... | Free GMAT Practice Question | GMAT Panda

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The toll T, in dollars, for a truck using a certain bridge is given by the formula T = 1.50 + 0.50 (x - 2), where x is the number of axles on the truck. What is the toll for an 18-wheel truck that has 2 wheels on its front axle and 4 wheels on each of its other axles?

Explanation	Calculations	Help
$We name x the number of axles on the truck.$	$x = number of axles on the truck$	Theory & Tactics Method Card TRANS1-A Click to view full details
$We calculate the number of axles by accounting for the front wheels and dividing the remaining wheels by the number of wheels per axle.$	$18 - 2 = 16 \frac{16}{4} = 4 x = 1 + 4 = 5$
$We substitute x = 5 into the toll formula and simplify.$	$T = 1.50 + 0.50 (x - 2) T = 1.50 + 0.50 \times (5 - 2) T = 1.50 + 0.50 \times 3 T = 1.50 + 1.50 = 3.00$

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3.00

The toll T, in dollars, for a truck using a certain bridge is given by the formula T = 1.50 + 0.50 (x - 2), where x is the number of axles on the truck. What is the toll for an 18-wheel truck that has 2 wheels on its front axle and 4 wheels on each of its other axles?

Explanation	Calculations	Help
$We name x the number of axles on the truck.$	$x = number of axles on the truck$	Theory & Tactics Method Card TRANS1-A Click to view full details
$We calculate the number of axles by accounting for the front wheels and dividing the remaining wheels by the number of wheels per axle.$	$18 - 2 = 16 \frac{16}{4} = 4 x = 1 + 4 = 5$
$We substitute x = 5 into the toll formula and simplify.$	$T = 1.50 + 0.50 (x - 2) T = 1.50 + 0.50 \times (5 - 2) T = 1.50 + 0.50 \times 3 T = 1.50 + 1.50 = 3.00$

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3.00