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dondre54
20.06.2020 •
Mathematics
In a city, the distance between the library and the police station is 3 miles less then twice the distance bewtween the police station and the fire station. The dustance between the library and the police station is 5 miles. HOW far alart are the police station and the fire starion
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Ответ:
4 miles
Step-by-step explanation:
let's set up an equation to find the distance between the fire station and police station. we know that the distance between the library and the police station is 3 less than twice the distance between the police and fire station. we can assume that the distance between the library and police station is x and the distance between the fire station and police station is y:
distance from library: x=2y-3
we also know that the total distance is 5 miles, so we can use this sam equation and find the distance od the fire station and police station by plugging the 5 where the x is:
(5)=2y-3
8=2y
∴y=4 miles
the distance between the fire station and police station is 4 miles.
Ответ:
1/25
Step-by-step explanation:
P of both answers are correct =
P first question is answered correct and P second question is answered correct
in probability, and = multiplication
P first question is answered correct =1 correct answer/5 possible answers =1/5
P second question is answered correct = 1/5
P of both answers are correct = (1/5) · (1/5) = 1/25