Final answer:
To convert 20 cups to milliliters, we first convert cups to fluid ounces and then fluid ounces to milliliters. The end result is approximately 591 milliliters.
Step-by-step explanation:
To convert cups to milliliters, we need to know the equivalence between the two units. According to the given information, 8 fluid ounces is equal to 1 cup. Now, we know that 1 fluid ounce is approximately 29.5735 milliliters. So, 8 fluid ounces is approximately 236.588 milliliters.
Next, we divide the number of cups (20) by 8 to get the number of fluid ounces. 20 divided by 8 is 2.5. Now, we multiply 2.5 by 236.588 to get the number of milliliters. This calculation gives us approximately 591.47 milliliters. Rounding to the nearest whole number, we have 591 milliliters.