The slope is rise over run. The ski run drops 5, so it would be -5, and the horizontal change of 20 would be the run, so you'd get -5 over 20 then you divide both by 5 and you get your answer of -1 over 4.
Answer:
41< (or equal to) x < (or equal to) 45
Step-by-step explanation:
Answer:
I believe it is 48%
Step-by-step explanation:
The total amount of people who liked to read printed books is 67.
Then the total amount of people who liked either print or electronic books is 140.
If I am remembering correctly, you would divide 67 by 140 to get the percentage of people who like to read printed books.
<u>67/140 = 48%</u> (rounded)
Step-by-step answer:
Answer to problems of this kind is the reciprocal of the harmonic mean of the time required.
We need to find the average of the speeds, not the average of the time.
The respective speeds are 1/3 and 1/4.
The average of the speeds is therefore (1/3+1/4)/2 = 7/24 (harmonic mean of the time taken).
The time required is therefore the reciprocal of the unit speed,
T = 1/(7/24) = 24/7 = 3 3/7 minutes, or approximately 3.43 minutes.
