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Kamila [148]
3 years ago
9

The ratio of keepers to animals in the city zoo is 2 : 7. The table shows the current numbers of animals and keepers in the zoo.

If 21 more animals are added, how many total keepers are needed to maintain the ratio of keepers to animals?
Mathematics
2 answers:
9966 [12]3 years ago
5 0

Answer:

The answer is 18 keepers

Step-by-step explanation:

agasfer [191]3 years ago
4 0
2:7                                                (\frac{12}{42} = \frac{2}{7})
12:42

42 + 21 = 63 animals
63/7 = 9
9 x 2 = 18

The answer is 18 keepers
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Explanation:

Since Jerry walked the dog from 6:40am to 7:30am, the total minutes that he walked the dog was 50 minutes. Also a note, an hour is 60 minutes.


Since he is paid at a rate of $6 per 60 minutes, we can make a proportion.

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From here, you have to solve for x. So cross multiply, and then simplify.

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