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Reika [66]
3 years ago
12

A sporting goods store is having a 15% off sale on all items. Which functions can be used to find the sale price of an

Mathematics
1 answer:
Bess [88]3 years ago
4 0

Answer:

y = 0.85x

f(x) = x - 0.15x

All the choices seem to have a missing decimal point.

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Function or not a function?
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Answer:Function

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A culture started with 5000 bacteria after 5 hours it grew to 6500 bacteria predict how many bacteria will be present after 16 h
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Answer:

After 16 hours bacterial count will be 11600.

Step-by-step explanation:

Bacterial growth is always an exponential growth in a given culture.So the formula for the growth will be

Final counts of bacteria = Initial counts × (rate of growth)^{time}

Given from first part Initial counts = 5000

Final counts= 6500 and time of growth = 5 hours

Then we will get the value of rate of growth of bacteria from the bacteria

⇒ 6500 = 5000×(rate)^{5}

(rate)^{5}= \frac{6500}{5000} = 1.3

Rate = \sqrt[5]{1.3} = 1.05

Now again to get the value of bacteria after 16 hours

Final Count = 5000×(1.05)^{16}

                   = 5000×2.32

                   = 11600


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3 years ago
Please help me find the slope
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