Answer
28 minutes or 7/15 of an hour
Step-by-step explanation:
We know that Rate*Time = Distance. Because we are given distance and rate, we can easily change the equation to Distance/Rate = Time.
7/8 / 1 7/8 =
7/8 / 15/8 =
7/8 * 8/15 =
7/15 hour
7/15 * 60 = 28 minutes
Answer:
-5
You have to multiply the number of miles by the amount of money per mile to figure out the cost of his journey.
80 + 18i
i² = -1
x = i + 9
x² = (i + 9)²
Applying; (a + b)² = a² + 2ab + b² concept,
x² = i² + 18i + 81
We know that i² = -1
So x² = -1 + 18i + 81
x² = 81 - 1 + 18i = 80 + 18i
