Solve the problem.

Jared's car normally gets fuel mileage of 44mpg but on a recent trip a headwind reduced his mileage by 17%. What was his car's mileage on that recent trip?

Question

Solve the problem.

Jared's car normally gets fuel mileage of 44mpg but on a recent trip a headwind reduced his mileage by 17%. What was his car's mileage on that recent trip?

BlackTom AI · Accepted Answer

We start by identifying the given information and the relationship we need to apply. Jared's normal mileage is 44 mpg, and the headwind reduces this by 17%. To find the mileage on the trip, we multiply by the remaining percentage: 44 × (1 − 0.17).
Option 1: 7.5 mpg. This value is far too low and would imply an enormous drop (over 80%), which does not align with a 17% reduction. It would require multiplying by about 0.17, not 0.83.
Option 2: 61 mpg. This would require an increase in mileage rather than a decrease, contradicting the stated headwind effect. It doesn’t reflect a reduction at all.
Option 3: 36.5 mpg. This matches the calculation 44 × 0.83 = 36.52, which rounds to 36.5 mpg. It correctly implements a 17% decrease from the original 44 mpg.
Option 4: 44 mpg. This would indicate no change from normal mileage, ignoring the specified headwind impact. It represents no reduction, which contradicts the problem’s setup.
In summary, only the option that applies a 17% reduction to the original mileage yields a plausible trip mileage, namely 36.5 mpg after rounding. The others fail to reflect the described change in efficiency.

Solve the problem. Jared's car normally gets fuel mileage of 44mpg but on a recent trip a headwind reduced his mileage by 17%. What was his car's mileage on that recent trip?单项选择题

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