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

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%

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.

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

step-by-step explanation:

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