Page 220 - Bank Soal AKM 28 Jan
P. 220
Sumber : Shiel, G., Perkins, R., Close, S., & Oldham, E.
(2007). PISA mathematics: A teacher’s guide. Dublin:
Department of Education and Science.)
The picture shows the footprints of a man walking. The
Sumber : http://2.bp.blogspot.com/-e-KfbRI4G_I/UivP8-
pace length P is the distance between the rear of two
qWnmI/AAAAAAAAPVk/GmP_z45_kTA/s640/453414_20130906095152.jpg
consecutive footprints. For men, the formula, n/P = Gambar diatas menunjukkan perjalanan Dika menggunakan
140, gives an approximate relationship between n and P sepeda roda satu. Dari jejak roda sepeda yang tertinggal di
where n = number of steps per minute and P = pace tanah, diketahui panjang lintasan yang telah dilalui Dika yaitu
length in metres. 165 m dengan diameter roda sepeda 21 cm. Hitunglah berapa
If the formula applies to Mark’s walking and Mark banyak putaran roda sepeda Dika tersebut jika diketahui :
takes 70 steps per minute, what is Mark’s pace length? Panjang lintasan (s) = Banyak putaran (n) × keliling roda (k)?
Show your work.
201
