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goblinko [34]
3 years ago
15

45 girls tried out for the field hockey team. 20% of the girls who tried out did not make the team. How many girls did not make

the team?
It lagged earlier when I first asked
Mathematics
2 answers:
Stella [2.4K]3 years ago
6 0

Answer:

9 girls did not make the team

Step-by-step explanation:

20*45=900

900/100=9

kolbaska11 [484]3 years ago
4 0

Answer:

9 girls didn't make the team

Step-by-step explanation:

The person above did it a great way, and that is the way I use it, but if you want a method that involves fractions here it is: 20% is the same as 1/5. Since there are 45 girls total, we need to find 1/5 of 45 and you can achieve that by multiplying 45 by 1/5 and you get 45/5 which is 9. Hope this helped :) .

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the hardcover version of a book weighs 7 ounces while its paperback version weighs 5 ounces. Forty-five copies of the book weigh
Nuetrik [128]

Keywords:

<em>System of equations, variables, hardcover version, paperback version, books </em>

For this case we must construct a system of two equations with two variables. Let "h" be the number of hardcover version books, and let "p" be the number of paperback version books. If the hardcover version of a book weighs 7 ounces and the paperback version weighs 5 ounces, to reach a total of 249 ounces we have:

7h + 5p = 249 (1)

On the other hand, if there are Forty-five copies of the book then:

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If from (2) we clear the number of books paperback version we have:

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As each paperback version book weighs 5 ounces, to obtain the total weight of the paperback version books, represented by "x" in the table shown, we multiply5 * p = 5 (45-h)

So, x = 5 (45-h)

Answer:

x = 5 (45-h)

Option D

8 0
3 years ago
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Which describes how to calculate the range of this data set?
Helen [10]

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Step-by-step explanation:

For the range you subtract the smallest number from the biggest number so 12-4.

6 0
2 years ago
When creating a histogram, the first recorded scale is 0 to 10. What should the second scale indicate?
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Answer:

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Step-by-step explanation:

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I hope this helps

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Step-by-step explanation:

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