Final answer:
Juilli should use 50g of sugar to maintain the 6:5 ratio with 60g of butter in her recipe.
Step-by-step explanation:
Juilli is using 60g of butter for her recipe and needs to maintain a ratio of butter to sugar of 6:5. To find out how much sugar she should use, we can set this problem up as a proportion comparing the two parts of the ratio. Since we know the amount of one part (butter), we can cross-multiply to find the amount of sugar needed.
The ratio of butter to sugar is given as 6:5, which means for every 6 parts of butter there should be 5 parts of sugar. Since Juilli uses 60g of butter (which represents '6 parts' of the ratio), we can create a simple equation to find '5 parts' which represent the sugar amount: (5 parts sugar / 6 parts butter) = (x g sugar / 60g butter).
Now we solve for x: x = (60g butter * 5) / 6 = 50g of sugar.
Therefore, Juilli should use 50g of sugar to maintain the correct ratio with 60g of butter in her recipe.