Cindy has $25 saved and earns $12 per week for walking dogs. Mindy has $55 saved and earns $7 per week for watering plants. Cind
y and
Mindy save all of the money they earn and do not spend any of their savings. After how many weeks will they have the same amount saved?
How much money will they have saved?
Mindy save all of the money they earn and do not spend any of their savings. After how many weeks will they have the same amount saved?
How much money will they have saved?
1 answer:
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By the inclusion/exclusion principle,
So the union of A, B, and C does not constitute the entire sample space.
So the union of A, B, and C does not constitute the entire sample space.