Final answer:
To find the cost per bottle of juice, subtract the cost of apples from the total cost before tax and divide that by the number of juice bottles, resulting in each bottle costing $1.31.
Step-by-step explanation:
To determine the cost of each bottle of juice that Jamal bought, we need to set up an equation that reflects the total cost before tax. We know that Jamal bought a bag of apples for $2.87 and some juice. If x represents the cost of each bottle of juice, and he bought an 8-pack of juice bottles, then the equation is:
2.87 + 8x = 13.35
This equation sums the cost of the apples and the cost of the juice bottles ($2.87 + 8x) and sets it equal to the total cost before tax ($13.35). To find the value of x, we can subtract the cost of the apples from the total cost and then divide by the number of juice bottles:
x = (13.35 - 2.87) / 8
Therefore, to solve for x, you would perform the subtraction to find the total cost of the juice bottles, then divide by 8 to find the cost per bottle:
x = 10.48 / 8
x = 1.31
Thus, each bottle of juice costs $1.31.