If a kiteboarder sails across the water at 40 km/hr, how far has she traveled in 15 minutes

First take note the kite is traveling at 40 km/hr, but we want to know how far she traveled in 15 minutes.

First divide 60(total minutes in an hour) by 15

60/15=4

Now divide 40 by 4

40/4=10

So she will travel 10 km in 15 minutes.

this means that the temperature of both substances will be equal

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up