help me please i need help

Question

Use dimensional analysis to convert the measurements.

A dwarf sea horse swims at a rate of 49.68 feet per hour. Convert this speed to inches per minute.

The speed is _______inches per minute.

Answer 1

49.68 ft/1 hr times 12 in/ 1 ft times 1 hr/ 60 min times 1 min/ 60 sec. cancel the labels and you are left with inches per second. Multiply everything on top and divide by everything on the bottom to ge answer.

.2656 inches per second

Answer 2

Notice that I used a conversion factor of 12 inches = 1 ft and 1 hour = 6 minutes. By doing so, we have units of feet on the top and bottom that cancel and the same with hours.

So now, we just need to multiply 49.68 by 12 and divide the results by 60 to get the final answer in inches/minute

Answer 3

49.68 ft * 1 hour * 12 inches

----------- -------------- ------------ = 9.936 inches/foot

hour 60 minutes 1 foot