The bottom one is correct
Answer:
Average Speed is 65 km/hr
Step-by-step explanation:
To get the average speed, first we have to calculate the time spent in the round trip .
Speed= Distance/ time
So, Time= Distance/Speed
Time Outgoing= 300km/ 97km/hr
Time Outgoing=3.0927 hr
Time lunch break =1 hr
Time return= 300km/ 58km/hr
Time Outgoing=5.1724 hr
Total= 3.0927 hr+1 hr+5.1724 hr=9.2651
To get average speed, we have to divide all the distance by the time it took al the trip.
Average Speed= Distance/ time
Average Speed= 600km/9.2651 hr= 64,76 km/hr
Average Speed=64,76 km/hr ≅ 65km/hr
Answer:
I would say the last one
Step-by-step explanation:
The third works the same way but 46/17 is hard to calculate without a calculator
If $25 is 5 times what Lisa earned, we simply divide that $25 by 5 to find that her earnings were $25 ÷ 5 = $5.
Step 
<u>Find the slope of the given line</u>
Let
slope mAB is equal to
Step 
<u>Find the slope of the line that is perpendicular to the given line</u>
Let
CD ------> the line that is perpendicular to the given line
we know that
If two lines are perpendicular, then the product of their slopes is equal to 
so
Step 
<u>Find the equation of the line with mCD and the point (3,0)</u>
we know that
the equation of the line in the form point-slope is equal to
Multiply by both sides
therefore
the answer is
the equation of the line that is perpendicular to the given line is the equation
