Question

#1 If y varies inversely as x, and y = 8b when x = 10a, what is y in terms of a and b when x = 4?
Select one:
a. 20
b. 20ab
c. 8ab
d. 10a

Answer 1

@LynFran

Answer 2

#2 Use the following situation to answer the question.
The number of letters (n) which can be typed on a sheet of paper varies inversely as the square of the size (s) of the letters used.

What is the relationship connecting n and s?
Select one:
a. eq_321bf1.gif
b. s = kn2
c. n = ks2
d. equation

Answer 3

@happyrosy

Answer 4

#3 Use the following situation to answer the question.
The time (t) in minutes, for a stadium to empty varies directly as the number of spectators (s) and inversely as the number of open exits (e).

How long does it take the stadium to empty when there are 36,000 spectators and 24 open exits? (The k value is .012)
Select one:
a. 15 minutes
b. 18 minutes
c. 36 minutes
d. 80 minutes

Answer 5

#4 Use the following situation to answer the question.

You travel at an average speed of 5mph to travel 100 miles and it takes 20 hours.

What type of variation is described?
Select one:
a. Direct
b. Indirect
c. Conjoined
d. Invariable

Answer 6

indirect