Answer:
2/5
Step-by-step explanation:
Use the distance formula to determine the distance between two points.
Let x be the time she ran and y be the time she walked
then distance ran = 25x and distance walked = 5y
so 15x + 5y = 42
and x + y = 4
* second equn. by -5:-
-5x - 5y = -20
add this to the first equn:0
10x = 22
x = 2.2
distance she ran = 2.2 * 15 = 33 km
I am going to say 15 but I am not sure since there is no pic
Answer:
4.95 a plus 6.55 b equals 27.95
Step-by-step explanation: