1. Georgia did an experiment. She started out with 700 bacteria cells. She found that the growth rate of the bacteria cells was
5.2%. (a) How many bacterial are present when Georgia starts her experiment? (b) How many bacteria are present after 25 hours? Round to the nearest bacteria. Show work. (c) Sketch the graph that represents the situation. Be sure to label your x- and y-axes and include units. All graphs must be hand drawn to receive full credit. (d) Label the coordinates points of your answers in parts a and b.
In total, Kay took 5+14+2=21exams. she got 80%-90% on 14 of them. the probably is 14/21 which is 2/3. Therefore, the probability of Kay getting 80%-90% on her next exam is 2/3 or 66.6%
From the first equation, x+5 = 3(y+5) x = 3y + 15 - 5 Now substitue x in the second equation with (3y +15 - 5). x-5 = 7(y-5) (3y+15-5) - 5 = 7(y-5) 3y +5 = 7y - 35 -4y = - 40 y = 10
Since y is 10, and x is (3y +15 - 5), x = 30 + 15 - 5 = 40