Using a system of equations, it is found that Allison bought 2 bottles of juice and 9 bottles of soda.
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
For this problem, the variables are:
Allison purchased a total of 11 bottles of juice, hence:
x + y = 11 -> x = 11 - y.
These 11 bottles contain 445 grams of sugar, hence, considering the amounts of each bottle, we have that:
20x + 45y = 445
Since x = 11 - y:
20(11 - y) + 45y = 445
25y = 225
y = 225/25
y = 9.
x = 11 - y = 11 - 9 = 2.
She bought 2 bottles of juice and 9 bottles of soda.
More can be learned about a system of equations at https://brainly.com/question/24342899
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