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NARA [144]
3 years ago
5

Use the percent equation to answer the question What percent of 58 is 8.7

Mathematics
2 answers:
yulyashka [42]3 years ago
4 0
58 is 666.66666% of 8.7

Lostsunrise [7]3 years ago
3 0
First, make a proportion.

8.7/58=x/100

Cross multiply. 8.7 multiplied by 100 is 870. Then divide 870 by 58. That gives you 15.
The answer is 15%
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If 8 identical blackboards are to be divided among 4 schools,how many divisions are possible? How many, if each school mustrecei
MAXImum [283]

Answer:

There are 165 ways to distribute the blackboards between the schools. If at least 1 blackboard goes to each school, then we only have 35 ways.

Step-by-step explanation:

Essentially, this is a problem of balls and sticks. The 8 identical blackboards can be represented as 8 balls, and you assign them to each school by using 3 sticks. Basically each school receives an amount of blackboards equivalent to the amount of balls between 2 sticks: The first school gets all the balls before the first stick, the second school gets all the balls between stick 1 and stick 2, the third school gets the balls between sticks 2 and 3 and the last school gets all remaining balls.

 The problem reduces to take 11 consecutive spots which we will use to localize the balls and the sticks and select 3 places to put the sticks. The amount of ways to do this is {11 \choose 3} = 165 . As a result, we have 165 ways to distribute the blackboards.

If each school needs at least 1 blackboard you can give 1 blackbooard to each of them first and distribute the remaining 4 the same way we did before. This time there will be 4 balls and 3 sticks, so we have to put 3 sticks in 7 spaces (if a school takes what it is between 2 sticks that doesnt have balls between, then that school only gets the first blackboard we assigned to it previously). The amount of ways to localize the sticks is {7 \choose 3} = 35. Thus, there are only 35 ways to distribute the blackboards in this case.

4 0
3 years ago
I am child in the family
uranmaximum [27]

Answer:

why this question ?!

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5 0
2 years ago
Read 2 more answers
A teacher's assistant entered 10 scores into the online gradebook in
-Dominant- [34]

Answer:

Ok I got it it’s 50

Step-by-step explanation:

because To divide by

1

5

, multiply by its reciprocal, 5.

10÷

1

5

= 105

= 50

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bearhunter [10]

Step-by-step explanation:

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2 years ago
-9y+7=24y-4. Solve for y.
patriot [66]

Answer:

y=1/3

Step-by-step explanation:

-9+7=24y-4

7=33y-4

11=33y

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6 0
3 years ago
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