Y varies inversely with x
means that y=k/x
with x=0.7 and y=80
we have 80=k/0.7
k=0.7x80=56
so the equation is
y=56/x
John has about 1.09 m of rope.
31 cm is 0.31 m
soo 0.33 + 0.45 + 0.31 = 1.09
18 / 1 = x / 15......18 miles to 1 gallon = x miles to 15 gallon
cross multiply
(1)(x) = (18)(15)
x = 270 miles
Y = -5x + 10
Your welcome for the help!
