exam Maths Puzzle Numerical Ability

Find the constant of variation k.
m varies directly with n; m=144 when n=8.
This is what I have; m=kn (144)=k8 k=18
Am I close on this at least a little? Thank you for your help.

Barb Neely

Read Solution (Total 0)

exam Other Question

4 1/5 X 10/21 X 9/20=
Please show me how to multiply fraction if you could? The only whole number is the (4) in the first prblem. THANKS
Solve by using the quadratic formula. x^2 + 5x – 14 = 0