The function f(x) varies inversely with x and f(x)=0.5 when x =0.3. what is f(x) when x=2.4?

0.0625

Step-by-step explanation:

If the function f(x) varies inversely with x, then this function is of the form

where a is unknown number.

Since  f(x)=0.5 when x =0.3, then

Therefore, the function is

Now when x=2.4,

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50

answer: i believe its b. if you sound out the sentences that sounds wrong.