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KatRina [158]
3 years ago
5

Zabato is thinking of a number. Three times the sum of the number and ten is the same as eight time the number. What is zabato's

number?
Mathematics
1 answer:
9966 [12]3 years ago
5 0

Answer:

Zabato is thinking of 6

Step-by-step explanation:

I first set it up as an equation based on the word problem you have given me

(n + 10)3 = 8n

Distribute the 3

3n + 30 = 8n

Isolate n

3n - 8n +30 - 30 = 8n - 8n - 30

-5n = -30

-5n/-5 = -30/-5

n = 6

To check replace 6 with n

(6 + 10)3 = 8 (6)

(16)3 = 48

48 = 48

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Explain how to use the regression calculator to make a reasonable prediction given a data table. ​
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Answer:

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Step-by-step explanation:

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3 years ago
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I only need help with the second part of this question. please can you help?
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3 years ago
A function models the growth of a sample starting with 40 bacteria with the ability to double every two hours. Which graph
natima [27]

Answer:

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The graph is in the image attached

Step-by-step explanation:

The function that models this growth is an exponencial function, that can be described with the following equation:

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Where a is the inicial value, b is the rate of growth, x is the time and n is the relation between the time and the rate (the rate occurs for every two hours, so n = 2).

Then, using a = 40, r = 2 and n = 2, we have:

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If we plot this function, we have the graph shown in the image attached,

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