Question

give that y varies directly as X when x=3 y=6 calculate y when x=7.5 and x when y=16.5​

Answer 1

Answer:

as y varies directly as x

Step-by-step explanation:

so

y = directly proportional to x

y=kx where k is constant

put x=3 and y =6 we get

6=3k

k=2

so

y=2x

now

put x=7.5

y=7.5×2

=15

for y=16.5

16.5=2×x

x=16.5÷2

=8.25