Question

Assume that y varies inversely as x. If x = 12 when y = 9, what is x when y = -3?
108
-36
27
-4

Assume that y varies inversely with x. If y = 3.75 when x = 9, what is x when y = 6.75?
33.75
1.8
5
60.75

Use the Law of Levers to solve the problem, x1y122. The number of chairs in a row varies inversely as the distance between them. When they are 10 centimeters apart, 27 chairs fit in a row. If 30 chairs are needed in a row, how many centimeters apart should they be placed?
9 cm
12 cm
15 cm
8 cm

Answer 1

first one is -36...

Answer 2

can you help me with the other two?

Answer 3

yeah, -36

Answer 4

second one is 5

Answer 5

xy=k

Answer 6

as it is inverse...

Answer 7

k=3.75*9

Answer 8

thus,
3.75*9=6.75*x
solving the eqn..
you get x=5

Answer 9

Thanks! You dont knowthe other one? And hey are you russian

Answer 10

no i am indian....

Answer 11

are you russian?

Answer 12

no haha i was just wondering because of your name.

Answer 13

can you write clearly the third one...

Answer 14

?