math word problem
posted by
marko on
.
a scale on a map is 1.5 in. : 200 mi. the map distance from miami to chicago is 9 in. what is the actual distance between the cities?

math word problem 
Ms. Sue,
Cross multiply and solve for x.
1.5/200 = 9/x

math word problem 
marko,
x= 13.5 is that right

math word problem 
Ms. Sue,
Does 13.5 miles make sense to you as the distance between Chicago and Miami????

math word problem 
marko,
sorry 2700 miles

math word problem 
Ms. Sue,
Nope.
http://library.thinkquest.org/20991/alg/ratios.html

math word problem 
marko,
1200

math word problem 
Ms. Sue,
Right! It's about 1200 miles between Miami and Chicago.

math word problem 
marko,
as always thanks for your help!

math word problem 
Ms. Sue,
You're very welcome, Marko.