Let "w" represent the number of weeks that have passed.
For Joelle:
The number of rocks in her collection after "w" weeks will be: 18 + 4w
For Lewis:
The number of rocks in his collection after "w" weeks will be: 30 + 3w
To find out after how many weeks they will have the same number of rocks in their collections, we can set up the following equation:
18 + 4w = 30 + 3w
Simplifying the equation:
w = 12
After 12 weeks, Joelle and Lewis will have the same number of rocks in their collections.
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.
after how many weeks will joelle and lewis have the same number of rocks in their collections
1 answer
1 answer