If a half marathon is 15.3 miles, how long will

Berikut ini adalah pertanyaan dari demixtwix pada mata pelajaran Matematika untuk jenjang Sekolah Dasar

If a half marathon is 15.3 miles, how long will it take a runner to complete the distancerunning at an average pace of 5 minutes and 30 seconds per kilometer? Give your answer
in hours and minutes, rounding your answer to the nearest minute.

Use the conversion rate: 1 mile = 1.61 kilometers

Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

Penjelasan dengan langkah-langkah:

First, we need to convert the distance of the half marathon from miles to kilometers using the conversion rate given:

15.3 miles = 15.3 x 1.61 = 24.633 kilometers (rounded to 3 decimal places)

Next, we can calculate the total time it will take the runner to complete the distance using the average pace of 5 minutes and 30 seconds per kilometer:

Time = distance x pace

Time = 24.633 km x (5 min + 30 sec/60 sec)

Time = 24.633 km x (5.5 min)

Time = 135.4815 minutes

To convert minutes to hours and minutes, we can divide by 60 to get the number of hours and then take the remainder to get the number of minutes:

Hours = 135.4815 min / 60 min/hour = 2.258 hours (rounded to 3 decimal places)

Minutes = 0.258 hours x 60 min/hour = 15.48 minutes (rounded to 2 decimal places)

Therefore, it will take the runner approximately 2 hours and 15 minutes (rounded to the nearest minute) to complete the half marathon at an average pace of 5 minutes and 30 seconds per kilometer.

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Last Update: Mon, 17 Jul 23