Hello!
ANSWER:
Ms. Stapleton had 1,040 ducks on her farm.
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EXPLANATION:
What we know:
We know that altogether Ms. Stapleton had 2,600 animals.
35% of which were hens, 25% were goats, and the rest were goats.
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How to solve:
To find out how many of the animals are ducks, we must first find out how many are hens and ducks and then subtract them from the total number of animals.
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Convert the percentages to decimals by dividing them by 100, then multiply.
35 ÷ 100 = 0.35
25 ÷ 100 = 0.25
2,600 × 0.35 = 910
2,600 × 0.25 = 650
910 + 650 = 1,560
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Ms. Stapleton had 910 hens and 650 goats on her farm, altogether 1,560. We must subtract:
2,600 - 1,560 = 1,040
