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ki77a [65]
3 years ago
5

billy is thinking of three numbers from 1 through 9 with a sum of 17. each number is used only once. What are the numbers?

Mathematics
1 answer:
bogdanovich [222]3 years ago
6 0

This is very interesting.

Billy could be thinking of

1,  7, and  9
2,  6, and  9
2,  7, and  8
3,  5, and  9
3,  6, and  8
4,  5, and  8
or
4,  6, and  7

but no other set of three numbers.



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<u>G</u><u>i</u><u>v</u><u>e</u><u>n</u><u> </u><u>f</u><u>u</u><u>n</u><u>c</u><u>t</u><u>i</u><u>o</u><u>n</u><u> </u><u>a</u><u>r</u><u>e</u><u> </u><u>n</u><u>o</u><u>t</u><u> </u><u>i</u><u>n</u><u>v</u><u>e</u><u>r</u><u>s</u><u>e</u><u> </u><u>o</u><u>f</u><u> </u><u>e</u><u>a</u><u>c</u><u>h</u><u> </u><u>o</u><u>t</u><u>h</u><u>e</u><u>r</u><u>.</u>

10.

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interchanging role of x & y

x=-y+3

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equal to g(x)=-x+3

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