Answer:
<u>The average speed coming home was 63.27 miles per hour</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Speed from home to Maine = 58 miles per hour
Time of the first leg of the trip = 3 hours or 180 minutes
Time of the second leg of the trip = 15 minutes less = 180 - 15 = 165 minutes or 2 hours 45 minutes
2. What was my average speed coming home?
Let's calculate the distance from home to Maine, this way:
Speed = Distance/Time
Distance = Speed * Time
Distance = 58 * 3 = 174 miles
Now, let's calculate the speed of the second leg, as follows:
Speed = Distance/Time
2 hours 45 minutes = 2.75
Speed = 174/2.75
<u>Speed = 63.27 miles per hour</u>
If you multiply the first equation by 2, you get the second equation. Consequently, these equations are said to be "depenent", so both describe the same line. Any of the infinite number of points on the line is a solution, so ...
... The system has infinitely many solutions.
Answer:
If height on the scale drawing is x inches, actual height is 8x/3 feet
Step-by-step explanation:
Drawing : actual
6 inches : 16 feet
x inches: y feet
6/x = 16/y
y = 16 × x/6
y = 8x/3 feet
the answer should be 1 1\3 that equals one hour.
