Question

1. A motorboat travels 196 meters in 20 seconds. What is the motorboat's unit rate of speed?

Step1. Write equivalent ratios.
The boat's rate of speed is 196m/20 secs.
Let X represent the unknown. The second ratio is: xM/1 sec.


Step2. set up and solve a proportion.

19/20 = X/1

196 . ------------= 20 .-------
--------=---------
X = -------

The unit rate ------ meters per second.

Answer 1

9/4/5m/s

speed is equal to distance all over time. So196m/20s=9/4/5m/s

Answer 2

196: 9.8

20: 1

x= 9.8 meters in 1 second

Explanation:

This can be determined by following writing equal ratios that represent a word problem. Then, the denominator must be divided from the numerator to get the unit rate/ meters per second.