aroman4511
15.11.2021 •
Mathematics
Adam's school is 12 miles from his house. It takes his older brother 20 minutes to drive him school. If adam's brother dives s mph faster than usual, how fast will they reach the school?
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Ответ:
Let the radius and height of cylinder A be Ra and Hb respectively and the radius and height of cylinder B be Rb and Hb respectively.
Using similar shapes:
Ra/Ha= Rb/Hb
5.6/Ha=1.4/4
Ha=(4×5.6)/1.4
Ha=22.4/1.4
Ha=16in