SOLUTION: Every day, Katie looks for seashells on the beach. She has 28 shells in her collection. Katie finds 12 more shells each day. Write an inequality to determine the number of days,

Algebra ->  Inequalities -> SOLUTION: Every day, Katie looks for seashells on the beach. She has 28 shells in her collection. Katie finds 12 more shells each day. Write an inequality to determine the number of days,      Log On


   



Question 952549: Every day, Katie looks for seashells on the beach. She has 28 shells in her collection. Katie finds 12 more shells each day.
Write an inequality to determine the number of days, d, it will take Katie to collect over 100 shells.
Provide a solution set to this inequality as well.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+28+%2B+12d+ is the number of shells she has
after +d+ days
----------------
The number of days it will take for her to have
over +100+ shells is found by solving:
++28+%2B+12d+%3E+100+
---------------------
Subtract +28+ from both sides
+12d+%3E+72+
+d+%3E+6+
This means she won't have more than
100 shells until the 7th day