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den301095 [7]
3 years ago
15

The ratio of the number of adults to the number of children in a library is 12:5. If there are 45 children in the library, how m

any adults are there at the library?
Mathematics
2 answers:
patriot [66]3 years ago
5 0

Answer:

The answer is 108.

Step-by-step explanation:

This can be solved with a simple proportion. 5/12 = 45/1. For 5 to become 45, you need to multiply by 9. You do the same to the denominator. 12 times 9 is 108.

zysi [14]3 years ago
4 0
The answer would be 108. 108:45 can be simplified to 12:5.
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no because he is STUPlD

Step-by-step explanation:

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2 years ago
the US Census found at the population per square mile in the state rose from 128.7 to 191.3 during the last 10 years. By how muc
rewona [7]

Answer:

The population growth is 6.26 per square mile per year

Step-by-step explanation:

We are given

he US Census found at the population per square mile in the state rose from 128.7 to 191.3 during the last 10 years

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now, we can find population grow per year

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3 0
3 years ago
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Rina8888 [55]

Answer:

3.3 recurring

Step-by-step explanation:

1) expand bracket

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11+6=27+3a

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5 0
3 years ago
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Schach [20]

Answer:

Average speed=52 miles per hour

Step-by-step explanation:

The expression for calculating the average speed is as follows;

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replacing;

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Step-by-step explanation:

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