Answer:
6 hours
Step-by-step explanation:
First, since they all collected 510, you divide 510 by 5, to figure out how much each person got.
You then know that each of them got 102 candies, so now, you subtract 12 from from 102, since the teacher gave them that much in the beginning.
You're left with 90, so last step is to divide 90 by 15, since they collect 15 every hour, which you get left with 6. Meaning they collected candies for 6 hours
<u>Answer:
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The population of a city has decreased by 38% since it was last measured. If the current population is 27,900 .Previous population of city was 45000.
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Solution:
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Given that current population of city is 27900.
Also, population of a city has decreased by 38% since it was last measured.
Let assume that population of city when it was last measured = x
Decreased of 38% means x-38% of x . we can write this as,
So current population is 
Equating above expression to the given value of current population, we get
x=45000
Hence previous population of city was 45000.
Answer:
-3x^2-21x+24
Step-by-step explanation:
Kindly separate the answer choices: (x - 4), (x + 1), (x + 4) , (x - 1). The trinomial is thus -3x^2-21x+24, which can be factored as follows: -3(x^2 + 7x - 8)
Then we have -3x^2-21x+24 = -3(x^2 + 7x - 8), which factors further into:
-3(x + 8)(x -1) and so we conclude that the only binomial that is a factor of
-3x^2-21x+24 is (x - 1).
The answer to the question
Answer:
1/24
Step-by-step explanation:
two coins each have a 1/2 probability of landing on heads so we multiply
1/2 x 1/2 = 1/4 probability of getting heads twice
we have a 1/6 chance of landing on a 4
so we multiply 1/6 x 1/4
which equals 1/24
