Your formula is right but you must have plugged it in wrong.
Y= 1/10 x
X is your distance, so plug in 85 with x
Y= 1/10 85
One- tenth as a decimal equals 0.1. So 0.1 times 85 will equal 8.5
Answer:
And find it all urself
Step-by-step explanation:
I suppose you want to solve the following equation for b:

First of all, you need to divide both sides by 9:

Then, subtract 2 from both sides:

Answer:
-1/2
Step-by-step explanation: