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shutvik [7]
2 years ago
9

When you multiply a number by 25 you get another number that is 250 more than 1000. find the number

Mathematics
1 answer:
Alex73 [517]2 years ago
8 0

Answer:

50

Step-by-step explanation:

1000+250=1250

After that Just do it in reverse:

1250/25=50

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A type of bacteria has a very high exponential growth rate of 80% every hour. If there are 10 bacteria, determine how many will
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<h3>There are 189 bacteria in 5 hours</h3><h3>There are 13382588 bacteria in 1 day</h3><h3>There are 10(1.8)^{168} bacteria in 1 week</h3>

<em><u>Solution:</u></em>

Given that,

A type of bacteria has a very high exponential growth rate of 80% every hour

There are 10 bacteria

<em><u>The increasing function is given as:</u></em>

y = a(1+r)^t

Where,

y is future value

a is initial value

r is growth rate

t is time period

From given,

a = 10

r = 80 \5 = \frac{80}{100} = 0.8

<em><u>Determine how many will be in 5 hours</u></em>

Substitute t = 5

y = 10(1 + 0.8)^5\\\\y = 10(1.8)^5\\\\y = 10 \times 18.89568\\\\y \approx 188.96

y = 189

Thus, there are 189 bacteria in 5 hours

<em><u>Determine how many will be in 1 day ?</u></em>

1 day = 24 hours

Substitute t = 24

y = 10(1 + 0.8)^{24}\\\\y = 10(1.8)^{24}\\\\y = 10 \times 1338258.84\\\\y = 13382588.45\\\\y \approx 13382588

Thus, there are 13382588 bacteria in 1 day

<em><u>Determine how many will be in 1 week</u></em>

1 week = 168

Substitute t = 168

y = 10(1 + 0.8)^{168}\\\\y = 10(1.8)^{168}

Thus there are 10(1.8)^{168} bacteria in 1 week

6 0
4 years ago
Determine the value of e.
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9514 1404 393

Answer:

  A)  16

Step-by-step explanation:

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  e = 8(8/4) = 8(2) = 16

The value of e is 16.

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