You are teaching your friend how to drive a boat. You drive 4 miles to an open location and then let your friend drive for 15 minutes at a rate of 1.25 miles per 15 seconds. What total
distance do you and your friend cover?

6,127 miles

Step by step explanation:

15 minutes = 360 seconds

360÷15 = 60

1.25×60 = 6123.0 = 6,123 miles

6,123+4 = 6,127 miles

= 6,127 miles in total

look a the sides they are perpendicular

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.