Answer:
18 km/hr
Step-by-step explanation:
To find the unit rate, we must find the rate in kilometers per hour.
Let’s divide the total kilometers by the total number of hours.
unit rate = kilometers/hours
Juan rode 72 kilometers in 4 hours.
unit rate = 72 kilometers/ 4 hours
unit rate = 72 km/4 hrs
unit rate = 18 km / hr
The unit rate is 18 kilometers per hour.
A is the best answer…
Work:
-10x-(-4y) will equal -10x+4y the minus minus will cancel out
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Answer:

Step-by-step explanation:
The area of a triangle is given by:

From the diagram 
We substitute into the formula to get:

This implies that:

Answer:
8 79/100
Step-by-step explanation: