On a certain road map, 3 inches represents an actual distance of 10 miles. If two towns are 10 inces apart on the map, what is the approximate distance between the towns?
2007-10-03 15:38:58 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Dude! Use ratios!
10 inch / 3 inches = X miles / 10 miles.
100 /3 = X miles
33 1/3 miles = X
2007-10-03 15:43:14 · answer #1 · answered by captn_carrot 5 · 0⤊ 1⤋
3"<---->10 miles
10"<-->(10/3) x 10 miles = 100 / 3 miles
= 33 1/3 miles
2007-10-04 05:05:00 · answer #2 · answered by Como 7 · 2⤊ 2⤋
frame the ratio
map scale/actual scale
3/10 = 10/x
crossmultiply
3x = 100
x = 100/3 = 33.33 miles
2007-10-03 22:43:52 · answer #3 · answered by mohanrao d 7 · 0⤊ 2⤋
3 in / 10 mi = 10 in/ D
Cross multiply
3D = 100
D = 33 1/3 mi or about 33 mi
2007-10-03 22:42:25 · answer #4 · answered by Marvin 4 · 0⤊ 1⤋
3in/10mi = 10in/xmi
3x = 100
x = 33 1/3
2007-10-03 22:42:19 · answer #5 · answered by ccw 4 · 0⤊ 1⤋
okay so 3inch=10M
then 10inch=XM
so 3ich*xM=10M*10inch
X=100/3=33 1/3miles
2007-10-03 22:42:22 · answer #6 · answered by B_s 2 · 0⤊ 1⤋
33.333333... miles
2007-10-03 22:42:17 · answer #7 · answered by Omega 3 · 0⤊ 2⤋