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Mary roller skates 18 miles in 1 1/2 hours what is her average speed in miles per hour

User Otopic
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1 Answer

3 votes

Answer:

12miles per hour

Step-by-step explanation:

Convert any mixed numbers to fractions.

Then your initial equation becomes:

181÷32181÷32

Applying the fractions formula for division,

=18×21×3=18×21×3

=363=363

Simplifying 36/3, the answer is

=12

User Tchaps
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