Answer: The combined amount of kids and adult meals sold = 36
Step-by-step explanation:
Let the number of kids meals sold = 5x and the number of adult meals = 4x
Since total kids meals sold = 20
Then, 5x= 20
⇒ x =4
Adult meals = 4(4) = 16
Combined meals sold = kids meals + Adult meals
= 20+ 16
= 36
Hence, the combined amount of kids and adult meals sold = 36
Slope is rise/ run, or change in y/ change in x. the error was that the person out run/rise, so the correct answer is 4/6.
Since Louis jumped 270 times in 6 hours this means that she jumped:

45 times per hour.
Now we need to find how many times she jumped per minute to do this we have to remember that one hour has 60 minutes then we divide the number of jumps per hour by the 60 minutes, that is:

This means that she jumps 0.75 times per minute. Finally to find out how many times she jumped in foour minutes we multiply the 0.75 by 4:

Therefore, Louis jumped 3 times in four minutes.
Answer:
11 persons chosen to participate in the survey
Step-by-step explanation:
A certain fraction or percentage of subjects or persons drawn randomly from a larger population is called a sample. A randomly selected set of sample will be representative of the population especially when it is impossible for the whole population to participate in the study. In the scenario above, the population or larger group would be the set of volunteers. The actual number of people chosen from the group of volunteers to participate in the survey is the sample, which are the 11 people chosen from the volunteers.
It actually says additional hours, but because it is not a choice here, it is 28 hours!