A
10. Alice is in a 20-km running race. She
always runs the first half at an average
s...
Mathematics, 08.12.2021 19:50 danielmartinez91
A
10. Alice is in a 20-km running race. She
always runs the first half at an average
speed of 2 km/h faster than the second
half.
a) Let x represent her speed in the first
half. Determine a simplified expression
in terms of x for the total time needed
for the race.
b) If Alice runs the first half at 10 km/h,
how long will it take her to run the
race?
Answers: 1
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