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avriannamcclenton1
29.06.2019 •
Mathematics
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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Ответ:
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
7 parts = 7 × 3 = 21 ← number of swans
6 parts = 6 × 3 = 18 ← number of ducks
Ответ: