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On the second day of a hiking trip the tourist covered a 17% bigger distance than on the first day . By how many percent of their average speed change from the first to the second day if on the second day they were hiking for a 20% longer time ​

Respuesta :

Answer:

2.5%

Step-by-step explanation:

x=distance   y=time

x has been increased by 17%

100%+17% = 117%

y has been increased by 20%

100%+20%=120%

Now let's make the percentages into decimals. 117%=1.17 120%=1.2

To find the average speed you do the distance traveled divided by the time taken.

Average speed = 2.5%

Answer:

2.5%

Step-by-step explanation:

T=time S=speed D=distance

T .  x .  S= .  D

1          100 .  100

1.2 .      97 .    117

117÷1.2=2.5

Answer is 2.5%

I do RSM so i know it is correct.

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