9+10=21 is an incorrect answer to a math problem, which was first spoken online in a Vine video. The video, also known as "What's Nine Plus Ten," quickly became a fad within the Vine community, leading to remixes and other parody, and later spreading to …

2022年7月7日 · Where Does "9 + 10 = 21" Come From? In June 2013, Vine user @DREHUPEMSU @WESTROSECRAN posted a clip in which he calls a boy, likely his brother, stupid. As the boy protests, the Viner asks him what is a sum of nine and ten, with the boy failing to do a correct calculation and answering "21," after which he …

2024年7月14日 · Overall, the “9 + 10 equals 21” meme gained popularity due to its simplicity, humor, and ease of adaptation across different platforms. Its viral nature and widespread appeal highlight the power of memes to transcend geographical and cultural boundaries, contributing to the collective cultural experience of the internet era.

2024年6月7日 · 9+10 = 21 looks back at a Vine video of "21 Kid," a young boy who confidently and incorrectly answers a math question.

If you wonder what the solution of 9 + 10 is, then look no further. This video takes a look at the origin of the 9+10 vine, whether we know who the 21 kid an...

2023年7月14日 · 数学计算 9 + 10 等于 19。 然而，存在一些混淆，导致一些人声称结果是 21。 这种混淆主要是由于互联网上的一个病毒视频，其中一个小孩说 9 + 10等于 21。 该视频被广泛分享，并在社交媒体上引发了各种表情包和笑话。 由于这段病毒视频的传播，人们说 9 + 10 等于 21 的事实可以被认为是一个笑话或一个错误。 需要注意的是，数学上正确的结果是 19 而不是 21。 人们之所以说9+10等于21，主要与之前提到的病毒视频的影响有关。 当视频在互联网上广泛 …

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10= (5/10)f One solution was found : f = 20 Reformatting the input : Changes made to your input should not affect the solution: (1): "0.5" was replaced by " (5/10)". Rearrange: ... When n=1, 1^2-9 \cdot 1 +10 = 2 is even. Now, suppose there is some n for which n^2-9 \cdot n + 10 is even.

9+10=21 or "What's Nine Plus Ten" is a meme and Vine video where a black kid, sometimes referred as the "21 kid", was asked what 9+10 is and he answered "21". It was uploaded on 22 June 2013 by his older brother who is an obscure music producer.