The scale on a map reads 4 cm = 30 miles. If the actual distance between two cities is 120 miles, what is the distance on the map?
A) 8 cm
B) 16 cm
C) 12 cm
D) 24 cm
2007-05-22 11:04:44 · 7 answers · asked by Anonymous in Education & Reference ➔ Homework Help
The answer is B
4/30 = x/120
30x=480
480/30=16
x=16
2007-05-22 11:32:12 · answer #1 · answered by dlspilot09 2 · 0⤊ 0⤋
The answer is B.
Think about it: 4 cm = 30 miles.
Therefore 8 cm = 60 miles.
12 cm = 90 miles
16 cm = 120 miles
See? What grade are you in? You should have been able to figure that out. That is 2nd grade work.
2007-05-22 11:11:31 · answer #2 · answered by Anonymous · 0⤊ 0⤋
16 cm. 120/30 = 4, 4 x 4 = 16
2007-05-22 11:39:18 · answer #3 · answered by bucknut71 2 · 0⤊ 0⤋
4 cm=30 miles
120 miles = x
4/x=30/120
30x=480
30x=30=480/30
x=16 cm
2007-05-22 11:47:36 · answer #4 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
Eh. you should be asking why the answer is what it is. B is the right answer, but because you have to cross multiply using a proportion. 4 = 30, 8 = 60, 16 = 120. Just doubled the values twice, or u can put then into a proportion/cross multiply...
2007-05-22 11:10:16 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The answer is 16 cm. 120m is four times thirty, so four times 4cm is 16.
2007-05-22 11:14:21 · answer #6 · answered by BeeGee 4 · 0⤊ 0⤋
B
2007-05-22 11:08:20 · answer #7 · answered by Anonymous · 0⤊ 0⤋