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Varvara68 [4.7K]
3 years ago
13

Write an equation to find how long it will take for the mass of the radioactive substance to reach 27grams.

Mathematics
1 answer:
kiruha [24]3 years ago
3 0

were are the answer choices

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Answer:

the answer is a

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Solve the system of equations: y = 2x - 5, y=x^2- 5
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Answer:

A

Step-by-step explanation:

both equation is y so

2x - 5 = x² - 5

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3 years ago
An album receives an award when it sells 100,000,000 copies. An album has sold 7,680,000 copies. How many more copies does it ne
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92,320,000

Step-by-step explanation:

100,000,000 - 7,680,000 = 92,320,000

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3 years ago
A bowl contains 15 granola bars and 10 fruit bars.
Greeley [361]
The answer would be 15:10

So in it's simplest form the answer would be 3:2 because you would divide each side by 5

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a bag contains 12 marbles of which 4 are red and 8 are blue. if two marbles are drawn at random, what is the probability that bo
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Answer:

\frac{1}{11}

Step-by-step explanation:

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We start with 12 marbles. So the probability of selecting a red marble is 4/12, or 1/3. Since this marble is not returned, we now have 11 marbles left, so the probability of selecting a second red marble is 3/11. Multiply 1/3 by 3/11, obtaining 1/11.

4 0
2 years ago
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