Final answer:
To adjust the bread roll recipe for 700 mL of water, multiply each ingredient by the scaling factor of 1.75, resulting in the use of 735 g of flour, 24.5 g of salt, 14 g of yeast, and 73.5 mL of oil.
Step-by-step explanation:
Eli is scaling up a bread roll recipe that calls for 400 mL of water, altering the amounts of the other ingredients proportionally to match his usage of 700 mL of water. To find out how much of each ingredient Eli needs, we must calculate the scaling factor by dividing the new amount of water by the original amount. The scaling factor is 700 mL / 400 mL = 1.75.
Now, we multiply each of the original ingredient amounts by this scaling factor:
- Flour: 420 g * 1.75 = 735 g
- Salt: 14 g * 1.75 = 24.5 g
- Yeast: 8 g * 1.75 = 14 g
- Oil: 42 mL * 1.75 = 73.5 mL
Therefore, Eli should use 735 g of flour, 24.5 g of salt, 14 g of yeast, and 73.5 mL of oil for his adjusted recipe.