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Irina18 [472]
3 years ago
10

A radio-active atom has a half-life of a day. This means that it decays by 1/2 each day. Write an equation for this expinential

function if you start with 64 grams
Mathematics
1 answer:
muminat3 years ago
7 0

Answer:

y = 64(0.5)ˣ

Step-by-step explanation:

We can write this as an exponential decay function. The formula for that is y = a(1 - b)ˣ where a is the initial value and b is the decay factor. In this case, a = 64 and b = 1/2 or 0.5 so the final answer is y = 64(0.5)ˣ.

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Answer:

Astrid needs 280 tons of wood to build ships that can accommodate 2100 sailors

Step-by-step explanation:

Here, in this question, we want to know the amount of wood needed by Astrid to accommodate 2100 sailors.

From the question, we can see that 40 tons are needed to build a ship that can accommodate 300 sailors.

Now, we want to make a calculation for the amount of wood needed for 2100 sailors.

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So mathematically,

x * 300 = 2100 * 40

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x = 280 tons of wood

We can see that 280 tons of wood are needed to build ships that can accommodate 2100 sailors

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