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Plz answer on the tutorbuddy forum as i can clarify with poster
2007-06-06 11:47:22 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
I don't even see how to answer the problem there.
The answer is D. It could be 8 or 10.
10 is obvious: let's say the number is 27. Then 27+10=37 and the digit sum is 10.
For 8, consider –27. Then –27+10=–17 and the sum of the digits is 8. Nothing about the problem precludes using negative numbers in setting up the problem, so the answer is 10... or 8.
2007-06-06 12:17:15 · answer #1 · answered by roynburton 5 · 0⤊ 0⤋
If the 2 digit number is positive the answer is 1 or 10.
The sum of the digits of 90 is 9 and 90 + 10 = 100
with digit sum 1.
2007-06-06 20:54:52 · answer #2 · answered by steiner1745 7 · 0⤊ 0⤋
(C) 10
2007-06-06 19:14:18 · answer #3 · answered by harry m 6 · 0⤊ 0⤋