katrd828 katrd828

05-12-2018
Mathematics

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the ratios swans to ducks in a pond is 7 to 6 if there are 39 swans and Ducks all together then how many ducks are there?

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jimrgrant1 jimrgrant1

05-12-2018

Answer:

18 ducks

Step-by-step explanation:

add the parts of the ratio 7 + 6 = 13

divide the total by 13 to find one part of the ratio

[tex]\frac{39}{13}[/tex] = 3 ← 1 part of the ratio

7 parts = 7 × 3 = 21 ← number of swans

6 parts = 6 × 3 = 18 ← number of ducks

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