Answer:
r < 4/7
Step-by-step explanation:
35r - 21 < -35r + 19
35r + 35r < 19 + 21
70r < 40
r < 4/7
Answer: 110 in the presence of no antibiotic, 53 in the presence of an antibiotic
Step-by-step explanation:
So first we are told the growth rate of a bacteria culture is 15% and the number of bacteria in the culture is 24
So we find 15% of 24
15/100 x 24 = 18/5
So 18/5 bacteria is produced every hour, then for 24hours
18/5 x 24 = 86.4
The number of bacteria is already 24 as said
So altogether
86.4 + 24 = 110.4 approximately 110
Then, for the presence of antibiotic, the growth rate is 5%
So 5% of 24
5/100 x 24 = 6/5
So 6/5 bacteria is produced every hour
For 24hours
6/5 x 24 = 28.8
Initial culture = 24
Final culture = 24 + 38.8 = 52.8 approximately 53
Answer:
1.83
Step-by-step explanation:
63 tenths=6.3
8.13-6.3=1.83
Answer:
36 miles.
Step-by-step explanation:
We have been given that Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. The entire trip took 3 hours.
Substitute the given values:
The total distance is 72 miles, so the distance going up would be half of 72.
Therefore, Karina went 36 miles up the mountain.
Answer:
A 0.6
Step-by-step explanation:
the fraction is 3/5 so if you do the eqation 3 divided by 5 u will get 0.6
