Q. Yesterday, there were b milligrams of bacteria in a lab experiment. Today, there are b2 milligrams of bacteria. If there are 400 milligrams today, how many milligrams of bacteria were there yesterday?
Answers
Answered by
3
Answer:
200mg
Step-by-step explanation:
no. of bacteria yesterday=B
no. of bacteria today=B²=400mg
no. of bacteria yesterday =B²÷2
=400÷2
=200mg
Answered by
2
Answer:
20 milligrams
Step-by-step explanation:
they were given b^2 = 400
taking the square root on both sides we get as follows
b = square root of 400
then we get b = 20 milligrams.
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