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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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Divide 450 grams into ratio 7:2
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Let us assume the common ratio = x
Then from the given question we can write
7x + 2x = 450
9x = 450
x = 450/9
   = 50
Then the quantity 450 grams can be divided in the ratio of 7 : 2 by = 7x:2x
                                                                                                          = (7 * 50) : (2 * 50)
                                                                                                          = 350:100
I hope this is the answer you were looking for and the procedure for finding the answer is also absolutely clear to you.
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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