Question 1185644

Hi
Becky walks to the stadium which is 580m way from her house for 20min . She walks back to her house using the same route at a speed of 20m per minute. 
What is her average speed. 

Thanks 
<pre>{{{matrix(1,4, Average, Speed, "=", matrix(1,2, Total, Distance)/matrix(1,2, Total, Time))}}}

Total Distance: 2(580) = 1,160 m


Time spent going: 20 minutes
Time spent returning: {{{matrix(1,4, 580/20, "=", 29, minutes)}}}
Total Time spent on trip: 20 + 29 = 49 minutes


{{{matrix(1,4, Average, Speed, "=", matrix(1,2, Total, Distance)/matrix(1,2, Total, Time))}}}
                {{{highlight_green(matrix(1,5, "=", "1,160"/49, "=", 23.67, "m/m"))}}}</pre>