3 years ago

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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Which situations can be modeled by a linear function?

AlexFokin [52]

Answer:

the answer is a

Step-by-step explanation:

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3 years ago

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

Burka [1]

Answer:

Step-by-step explanation:

both equation is y so

2x - 5 = x² - 5

2x = x²

0 = x² - 2x

0 = x(x-2)

x = 0

x = 2

for x = 0

y = 2x - 5

y = 0 - 5

y = -5

(0,-5)

for x = 2

y = 2x - 5

y = 2(2) - 5

y = -1

(2,-1)

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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

Sloan [31]

Answer:

92,320,000

Step-by-step explanation:

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

branliest? :)

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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

Hope this helps :)

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3 years ago

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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

creativ13 [48]

Answer:

$\frac{1}{11}$

Step-by-step explanation:

$\frac{4}{12} \times \frac{3}{11} = \frac{1}{3} \times \frac{3}{11} = \frac{1}{11}$

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.

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2 years ago