I need to change both measurements to the same unit of measure,then find the scale factor for a few problems:
2-in. model of a 5-ft desk
4ft- model of a 120-yd field
30-cm model of a 7.5-m wall
2007-03-29 09:37:55 · 3 answers · asked by Top Notch Glamour Chick 2 in Science & Mathematics ➔ Mathematics
Well, there are 12 inches in a foot.
There are 3 feet in a yard.
There are 100 cm in a meter.
So for 1:
(2in)(1ft/12in) = x ft
number 2:
(4ft)(1 yd/3ft) = x yards
Number 3
(30cm)(1 m/100 cm) = x meters
2007-03-29 09:41:57 · answer #1 · answered by Brian L 7 · 1⤊ 0⤋
5 feet =60 inch so scale factor=60/2=30
1 yard = 3 feet scale = 120*3/4= 90
1 m =100cm scale =7.5*100/30=25
2007-03-29 16:49:53 · answer #2 · answered by santmann2002 7 · 0⤊ 0⤋
30:1
90:1
25:1
Divide the larger dimension by the smaller. Convert first to identical units.
2" 60"
4' 360'
30 cm 750cm
2007-03-29 16:47:16 · answer #3 · answered by Anonymous · 0⤊ 0⤋