While working on his science fair project, Julian noticed changes in the cultures he was growing. He noticed that the cultures w
ere increasing daily as displayed in the chart. The rate is
1 day to 4 cultures
2 days to 9 cultures
3 days to 16 cultures
4 days to 25 cultures
If the increase continues at the same rate, how many cultures will be present on the ninth day?
The answer is: " 100 cultures " . _______________________________________________ Take the number of the day we are at (from the beginning; in this case, "9" (for "Day 9"). _________________________________________________ Then add "1" to that number (in this case, " 9 + 1 = 10" . _________________________________________________ Then, take that value (in this case, "10"); and "square" that value ; (in this case; " 10² = 10 * 10 = 100 . This is the answer. __________________________________________________ The answer is: " 100 cultures " . __________________________________________________ <u>Note</u><u>:</u>We get this steps by noticing the trend from the information provided. ___________________________________________________
