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BlackZzzverrR [31]

3 years ago

5

If the number of bacteria in a colony doubles every 21 hours and there is currently a population of 150 bacteria, what will the

population be 42 hours from now?

1 answer:

bulgar [2K]3 years ago

6 0

Answer:

450

Step-by-step explanation:

i think thats right

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The sum of two numbers is 10. The difference between three times the first number and twice the second number is 20. Find the tw

77julia77 [94]

Answer:

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3 years ago

A newspaper costs 80 pence. Tom buys a newspaper everyday. How much will Tom spend on newspapers for: four days? & seven?

Iteru [2.4K]

Answer:

four days: 320 pence

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Step-by-step explanation:

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3 years ago

87-(36.5-11.5)*(-3)+9 simplify using order of operations

OLga [1]

Remember PEMDAS
Do parentheses, results in 25. So whats left is 87-25*(-3)+9
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The answer is 171!

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4 years ago

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maksim [4K]

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David drew this diagram of a picture he is going to make. Each square represents one square inch. What is the area of the pictur

lbvjy [14]

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3 years ago