Distance and time are directly proportional for an object moving a constant speed.What is the value of the proportionality constant for a car that travels 133 miles in 2.5 hours? A)3.3 × 10² mi • hr B)1.4 × 10² mi • hr C)1.3 × 10² mi • hr D)53 mi/hr E)0.019 hr/mi

Question

Quizplus · Accepted Answer

Since distance and time are directly proportional, we can use the formula: distance = (proportionality constant) x time. To find the proportionality constant, we can rearrange the formula as: (proportionality constant) = distance / time. Plugging in the given values, we get: (proportionality constant) = 133 miles / 2.5 hours = 53 mi/hr. Therefore, the answer is D.

Distance and Time Are Directly Proportional for an Object Moving