Answer:
2.4 hours or 2 hours and 24 minutes
Step-by-step explanation:
Jack mows 1/6 of the lawn per hour while Marilyn mows 1/4 of the lawn together. Adding up those rates yields in their combined mowing rate:
The time required for them to mow the entire lawn is:
It would take them both 2.4 hours to mow the lawn together.
0 = x + 2 + x^2
x^2 + x + 2 = 0
a = 1, b = 1, c = 2
discriminant = b^2 - 4ac = 1^2 - (4 x 1 x 2) = 1 - 8 = -7
In Mathematics, braces ( {} )are used to symbolize
the group of mathematical terms, commonly
as the outmost measurement in a difficult expression. Braces are used in roster
notation. Wherein within the braces there are a set of elements, which are
separated by commas after each element. The set may be a set of whole numbers,
or a set of natural numbers, or even a set of integers. While in Interval
Notations, brackets and parentheses are used to indicate, whether the endpoints
are left out or contained within.
Answer:
0.0286 or 2.86%
Step-by-step explanation:
The total number of people that have werewolfism is 21,000.
Of those 21,000, 600 also have vampirism, while the remaining 20,400 do not. Therefore, the probability that someone has vampirism, given that they have werewolfism is:
The probability is 0.0286 or 2.86%.
The greatest common factor is 1
