Hello, potato92!
Lauren is competing in her town's crosscountry competition.
She must race from point on the Greenbriar River to point ,
which is 5 mi downstream and on the opposite bank. The Greenbriar is 1 mi wide.
Lauren knows she can use any combination of running and swimming.
She can run 10 mph and swim 8 mph.
1) How long would it take if she ran 5 mi downstream and then swam across? Code:
A      5      C
oo


 1


o
B
She would run 5 miles at 10 mph.
. . This would take: . hours.
She would swim 1 mile at 8 mph.
. . This would take: . hours.
Her total time: . hours.
2) Find the time it would take if she swam diagonally from A to B. Code:
A      5      C
oo
* 
* 
*  1
* 
* 
o
B
She would swim: . miles at 8 mph.
Her time is: . hours.
3) Find so that she could run miles along the bank,
swim diagonally to B, and complete the race in 36 min. Code:
:      5      :
A    x    P 5x C
ooo
\ 
\ 
\  1
\ 
\
o
n B
She would run miles to at 10 mph.
. . This takes her: . hours.
She would swim miles at 8 mpn.
. . This takes her: . hours.
. .
. . And solve for