Distance = rate*time
distance/time = rate
The race course is 3 miles around and Jeff does it twice, so the distance he goes = 2*3 miles = 6 miles.
He takes 20 minutes to go around once and 25 minutes to go around the second time, so the total time = 20 min + 25 min = 45 min.
His speed is miles per hour, not miles per minute, so convert 45 minutes to a hours:
45 min/60 min = 0.75 hours <span>distance/time = rate = 6 miles/0.75 hours = 8 mph</span>
X(x+4)
(x+2)^2-4
(x+4)x
Hope this helps.
Answer: (A) 2
The sum of the integers from -2015 to 2017 = 2
Step-by-step explanation:
The sum of integers a and b is represented as a+b.
The sum of the integers from -2015 to 2017 = -2015+2017
Since -a+b=b-a
Thus, The sum of the integers from -2015 to 2017 = 2017-2015 = 2
i.e. The sum of the integers from -2015 to 2017 = 2
Thus , the correct option is (A).
Answer:
find the difference. find the sum
Step-by-step explanation:
The correct answer is Choice A: 30.
To find the amount of interest, we have to use the formula for compounded interest.
It would be: y = 500(1 + 0.03/4)^(8)
We divided the 3% by 4 because it is quarterly. We raised it to the 8th power, because it will be compounded 8 times (4 x 2).
The interest comes out to $30.80.
