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shutvik [7]
2 years ago
5

The half-life of a radioactive substance is the time required for half of a sample to undergo radioactive decay,or for the quant

ity to fall to half its original amount.Carbon 14 has a half-line of 5730 years.Suppose given samples of carbon 14 weigh 5/8 of a pound and 7/8 of a pound.What was the total weight of the samples 11,460 years ago?
Mathematics
1 answer:
NikAS [45]2 years ago
4 0

Answer:

That's two half lives. 5/8 * 2 * 2 = 20/8 = 5/2 pounds7/8 * 2 * 2 = 28/8 = 7/2 pounds

Step-by-step explanation:

Brainliest plz?

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. Frosty Snacks sells ice cream in a cylindrical cup and in cones.
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Answer:

10.99 in^3

Step-by-step explanation:

Steps to determining the answer

  1. determine the volume of the cylinder
  2. determine the volume of the cone
  3. find the difference in volumes

volume of a cylinder = nr^2h

n = 3.14

r = radius

3.14 x 4 x 2² = 50.24 in³

Volume of a cone 1/3(nr^2h)

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8 0
3 years ago
A bicycle store cost $2400 per month to operate. the store pays an average of $60 per bike. the average selling price of each bi
algol [13]

The store must sell 40 bikes each month to break even.

Step-by-step explanation:

Given,

Operating cost of store = $2400

Average paid per bike = $60

Average selling price of one bike = $120

Let,

x be the number of bicycle.

Therefore, to break even

Total operating costs per month = Total bikes sold each month

2400+60x = 120x

Subtracting 60x from both sides

2400+60x-60x=120x-60x\\2400=60x\\60x=2400\\

Dividing both sides by 60

\frac{60x}{60}=\frac{2400}{60}\\x=40

The store must sell 40 bikes each month to break even.

Keywords: linear equation, subtraction

Learn more about linear equations at:

  • brainly.com/question/9178881
  • brainly.com/question/909731

#LearnwithBrainly

4 0
3 years ago
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