Let's represent the number of weeks by the variable `w`.
In `w` weeks, Joelle will have 18 + 4w rocks in her collection.
In `w` weeks, Lewis will have 30 + 3w rocks in his collection.
To find the number of rocks they will both have when the amount of rocks in their collection is equal, we set the two expressions equal to each other:
18 + 4w = 30 + 3w
Simplifying the equation:
w = 12
Therefore, when the amount of rocks in their collection is equal, they will each have 18 + 4(12) = 66 rocks in their collection.
Joelle currently has 18 rocks in her collection and gains 4 each week. Lewis currently has 30 rocks in his collection and gains 3 each week. Set up a system of equations to show how many rocks each has in their collection
How many rocks will Joelle and Lewis have when the amount of rocks in their collection is equal? They will each have __ rocks in their collection.
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