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

12miles per hour

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

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.