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mixas84 [53]
3 years ago
11

the sales tax in the town where amanda lives is 7 %. amanda paid 35 in sales tax on a new stero . what was the price of the ster

eo
Mathematics
1 answer:
Blababa [14]3 years ago
4 0
24 dollars if you times the amount of percentage using the correct ratio you should get around 24 or maybe 24.50 
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1.the ratio if the weight of an object on mars to its weight in earth is 9 to 25.If a person weighs 120pouns on earth,how much w
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Option a: The number of bacteria at time x is 0.

Option b: An exponential function that represents the population is y=200(1.5)^x

Option c: The population after 10 minutes is 11534(app)

Explanation:

It is given that the coordinates of the graph are (0,200), (1,300) and (2, 450)

Option a: To determine the number of bacteria x when y = 200

From the graph, we can see that the line meets y = 200 when x = 0

Thus, the coordinates are (0,200)

Hence, the number of bacteria at time x is 0 when y = 200.

Option b: Now, we shall determine the exponential function of the population.

The general formula for exponential function is y=a \cdot b^{x}

Where a is the starting point and a=200

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Thus, substituting the values a=200 and b=1.5 in the formula y=a \cdot b^{x},

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Thus, we have,

\begin{aligned}y &=200(1.5)^{x} \\&=200(1.5)^{10} \\&=200(57.67) \\&=11534\end{aligned}

Hence, the population after 10 minutes is 11534(app)

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