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Mathematics 55 Online
OpenStudy (rayman5766):

On a map, 2 cm represents 30 mi. On the map, the distance between two cities is 7.5 cm. What is the actual distance between the two cities? A. 8 mi B. 35.5 mi C. 112.5 mi D. 225 mi

OpenStudy (vanessaperezxo):

What do you think is the answer?

OpenStudy (vanessaperezxo):

@rayman5766

OpenStudy (rayman5766):

c

OpenStudy (vanessaperezxo):

Yes, your correct. Do you understand why it is c?

OpenStudy (rayman5766):

I kind of like cross multiply in my head

OpenStudy (vanessaperezxo):

Ok, yes you can do it that way or...

OpenStudy (vanessaperezxo):

You can divide 7.5 by 2, which equals 3.75 . Then, multiply it by 30 and it gives you the answer.

OpenStudy (anonymous):

Welcome to the matrix

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