Answer:
15 minutes
Step-by-step explanation:
You must find the unit rate.
You can find this by dividing 16 miles by 20 minutes
This formula would find how many per minute
The answer would be .64 miles per minutes.
Then Multiply .64 by 12 which would give you the answer of 7.68
Slope intercept form is: y = mx + b
Isolate the y. First subtract 10x from both sides
10x (-10x) + 2y = 8 (-10x)
2y = -10x + 8
Isolate the y. Divide 2 from both sides and <em>all</em> terms.
(2y)/2 = (-10x + 8)/2
y = -5x + 4
y = -5x + 4 is your slope intercept form answer.
hope this helps