Answer:
32/8 simplest is 4/1 or 4
Step-by-step explanation:
Entire distance = 1,320
Entire time = 5 hours
bus avg = 40 km/h
plane avg = 600 km/h
Working this by trial and error
1 hour bus 4 hour plane = 40 + 2,400 = 2,800 distance (too high)
2 hour bus 3 hour plane = 80 + 1,800 = 1,880 distance (too high)
3 hour bus 2 hour plane = 120 + 1,200 = 1,320 distance (Correct!!)
So, they traveled 3 hours by bus and 2 hours by plane
(yes, you had the right answer).
It’s a linear function because each x value belongs to only one y value and only one y value belongs to one x value
Hello from MrBillDoesMath!
Answer:
Not so simple. See discussion below
Discussion:
Consider these two examples:
0<= f < = 1, then (2/3) * f < (2/3) * 1 = 2/3
so the product is less than either of the factors
f = -5, then (2/3)* (-5/1) = -10/3
so the product is actually larger than the factor -5 !
In other words, the general answer depends upon the sign as well as value of the fraction. The problem probably meant that multiplying a positive fraction by a number less than 1 and >= 0 makes the product smaller. But as your see from the above examples, a more fine grained analysis is required for a full answer.
Thank you,
MrB
Answer:
B
Step-by-step explanation:
The domain is all the possible values of x. The graph starts at x=-2 and continues to positive infinity, so x ≥ -2.
Answer B.
