Answer:
Smallest rate for the train is 50 mph and largest is 60 mph.
For the bus it is 25 and 30 mph.
Step-by-step explanation:
If the speed of the train is 2x then speed of the bus is x mph, and the train travels twice as far as the bus in a given time.
Distance = speed * time
For the largest rate:
d = 2x * 0.5 for the train
x = d
0.5d = x for the bus
d - 0.5d = 15
0.5d = 15
d = 30
So the rate for the train = 30 / 0.5 = 60 mph.
In a similar fashion we can show that the smallest rate for the train is
25/ 0.5 = 50 mph.
The domain is the complete set of values for which x, or the independent variable, is possible for.
The range is the complete set of values for which y or the dependent variable is possible for.
Hope this helps.
Answer:
Step-by-step explanation:
Probability of getting the newspaper on his front porch = P(A) = 0.64
Probability of finding the newspaper on his lawn = P(B) =? (We don't know, this is what we have to find.)
Total probability = 1
Formula, P(A) + P(B) = 1
Let's put all values in this formula,
0.64 + P(B) = 1
P(B) = 1 - 0.64
P(B) = 0.36
Thus, the probablity that Mr. Johnson finds his newspaper on his lawn is 0.36 or 36%.
Determine the level of measurement of the variable below.assessed value of a house?
Solution: Assessed value of a house is a ratio variable, because assessed value of a house can be measured numerically and difference between any two values has a useful meaning. Also, when the assessed value of a house is zero, it means there is none of this variable. Therefore, the assessed value of a house is a Ratio Variable
The function is
y =
----1.
Plug x = 2x in 1.
∴y` =
----- 2.
Divide 1 and 2. You will get,
y = 4 y`
Therefore, y is quartered
