The variables y and x have a proportinal relationship and y=12 when x=5 . what is the value of y when x=8?

y =

Step-by-step explanation:

given that y and x are proportional then the equation relating them is

y = kx ← k is the constant of proportionality

to find k use the given condition y = 12 when x = 5

k = =

y = x ← equation of proportionality

when x = 8, then

y = × 8 =

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100