12.42
12°+.42(60)
12°25.2'
12°25'+.2(60)
12°25'12"
Answer:
25.5 mph
Step-by-step explanation:
So Bradley's speed can be modeled by the equation y=2x+40 where y=speed, x=time in hours after noon, and b=initial speed
So 12:15 is 15 minutes after noon, which is also 0.25 or 1/4 of an hour after noon. This is the x-value. Plug this into the equation to get his speed at 12:15
y=2(0.25)+40
y=0.5+40
y=40.5
So his speed was 40.5 at the time and since he was going 15 miles over the speed limit, the speed limit is 15 less than his speed
40.5 - 15 = 25.5
Answer: 45 and 46
Step-by-step explanation: let the first integer be x and the second x + 1
i.e x + x + 1 = 91
2x = 90
x = 45
the second is 45+1 = 46
