Here, the distance traveled is not given, but Irina's bike-riding speed is:  it is 16 mph.
Let the distance traveled be d.  Then d = (27 mph)(0.4 hr) = 10.8 miles.
By bicycle, distance = rate times time.  Here, 10.8 miles = (16 mph)(time), and so
                10.8 mi
time = --------------- = 0.675 hour (40.5 minutes).
             16 mph
        
             
        
        
        
Answer:
x = 1
Step-by-step explanation:
Given that y varies inversely as x then the equation relating them is
y =  ← k is the constant of variation
 ← k is the constant of variation
To find k use the condition y = 5 when x = 3
k = yx = 5 × 3 = 15, thus
y =  ← equation of variation
 ← equation of variation
When y = 15 then
15 =  ( multiply both sides by x )
 ( multiply both sides by x )
15x = 15 ( divide both sides by 15 )
x = 1
 
        
             
        
        
        
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