The table shows the number of days per week households eat their dinner together.  What percent of households eat their dinner together at least once a week? \begin{tabular}{|c|c|}
\multicolumn{2}{c}{}\\\hline
7 days&40\%\\\hline
5-6 days&30\%\\\hline
1-4 days&20\%\\\hline
0 days&10\%\\\hline
\end{tabular}
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
The table shows the number of days per week households eat their dinner together.  What percent of households eat their dinner together at least once a week? \begin{tabular}{|c|c|}
\multicolumn{2}{c}{}\\\hline
7 days&40\%\\\hline
5-6 days&30\%\\\hline
1-4 days&20\%\\\hline
0 days&10\%\\\hline
\end{tabular}
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
90
The table shows the number of days per week households eat their dinner together.  What percent of households eat their dinner together at least once a week? \begin{tabular}{|c|c|}
\multicolumn{2}{c}{}\\\hline
7 days&40\%\\\hline
5-6 days&30\%\\\hline
1-4 days&20\%\\\hline
0 days&10\%\\\hline
\end{tabular}
train