Ascientist counts 25 bacteria present in a culture and that number triple each hour. when will there be about 1170 bacteria in the culture?

25 bacteria at time = 0
population triples each hour
population = 25 * (3^time)

We have to solve that equation for time so we
take logarithms of both sides:
population / 25 =  (3^time)
log(1,170 / 25) = time * log(3)
log(46.8) = time * log(3)
1.6702458531 = time * 0.4771212547
time =  1.6702458531 / 0.4771212547
time = 3.5006737523 hours

Double check
population = 25 * (3^3.5006737523)
population = 25*46.8
population = 1,170

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.

the answer is 18.