To determine how many grams of sugar Lisa used to make 256 fluid ounces of sweet tea, we first calculate how much sugar is needed for each fluid ounce of tea.
Lisa uses 5 grams of sugar for 8 fluid ounces. Therefore, the amount of sugar per fluid ounce is:
\[ \text{Sugar per fluid ounce} = \frac{5 \text{ grams}}{8 \text{ fluid ounces}} = 0.625 \text{ grams per fluid ounce} \]
Now, to find out how much sugar Lisa used for 256 fluid ounces, we multiply the sugar per fluid ounce by the total number of fluid ounces:
\[ \text{Total sugar for 256 fluid ounces} = 0.625 \text{ grams per fluid ounce} \times 256 \text{ fluid ounces} \]
Calculating this gives:
\[ 0.625 \times 256 = 160 \text{ grams} \]
Therefore, Lisa used 160 grams of sugar to make 256 fluid ounces of sweet tea.
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