Answer:
8 m
Step-by-step explanation:
1) Make sure that they both have the same unit which in this case I'll change Km to m.
3.2 Km x 1000 = 3200 m
2) In order to find how much laps of 400m the athlete can cover you need to understand that one lap is 400 m, thus to find how many laps you have to divide 3200 m by 400 m
3200 m / 400 m = 8 m
Answer:
Step-by-step explanation:
Answer:
-12,3
Step-by-step explanation:
-12×3=-36
-12+3=-9
Answer:
-9,4
Step-by-step explanation:
TLDR: 241 clients will be taking +3 vacations.
This is a common example of representative scale size, or sample size. In selecting a small amount of people at random from a larger group, one can estimate the amount of people in the large group picking a specific answer based on a smaller, but proportionate, group size.
In the sample size, 21 of the 45 tested people said that they would go on more than three vacations a year, and this scale is supposedly proportional to the total group. Therefore, we can use a simple proportion to estimate the amount of people who would also say that they are going on more than three trips a year:
21 would ‘N’ would
————— = ——————
45 total 516 total
where N represents the number of people in the big group that would go on more than three trips a year.
Solve the proportion by cross-multiplication:
45N = 10,836
N = 240.8 people, or 241 people.
Based on the sample data, 241 people out of the 516 total will be taking more than three vacations a year.