tinamarie04ts
24.08.2019 •
Mathematics
Afarmer has some horses and ducks. he has 120 ducks, and the number of horses is 0.65 of that amount. how many more ducks does he have?
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Ответ:
120 x .65 = 78 horses in all
120 - 78 = 42 more ducks than horses
Ответ:
Explanation:
Test all the ordered pairs in the equations. The one that fits in both is the answer.
(9, 3)
9 + 3 = 8 12 ≠ 8 no
9 - 3 = 6 6 = 6 yes
(6, 0)
6 + 0 = 8 6 ≠ 8 no
6 - 0 = 6 6 = 6 yes
(8, 2)
8 + 2 = 8 10 ≠ 8 no
8 - 2 = 6 6 = 6 yes
(7, 1)
7 + 1 = 8 8 = 8 yes
7 - 1 = 6 6 = 6 yes