The answer is W = 1.1
Let's denote the number of bottles of water and bottles of juice as x.
Given that a bottle of water costs W dollars and a bottle of juice costs W + 1 dollars, the total cost of bottles of water and bottles of juice can be expressed as:
Total cost of water = x * W
Total cost of juice = x * (W + 1)
According to the given information, Alex spends 22 dollars on bottles of water and 42 dollars on bottles of juice. We can set up the following equations:
x * W = 22 ---(1)
x * (W + 1) = 42 ---(2)
To find the value of W, we can solve this system of equations. We'll start by solving equation (1) for x:
x = 22 / W
Substituting this value of x into equation (2):
(22 / W) * (W + 1) = 42
Expanding the equation:
22(W + 1) = 42W
22W + 22 = 42W
Rearranging the terms:
42W - 22W = 22
20W = 22
W = 22 / 20
Simplifying:
W = 1.1
Therefore, the value of W is 1.1.