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dimulka [17.4K]
3 years ago
6

Solve for

r>
6-5x-2x
6 - 5x - 2x + 1 =2x


​
Mathematics
1 answer:
konstantin123 [22]3 years ago
5 0

Answer:

x =  \frac{7}{9}

Step-by-step explanation:

We combine like terms together

7 - 7x = 2x

Then we rearrange and solve for X

7 = 9x

\frac{7}{9}  = x

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Two days after a biology experiment there was 49 million bacteria present. Four days after the experiment there was 600.25 milli
nataly862011 [7]

Answer:

y=Ae^(1.25t)

Step-by-step explanation:

From the expression  y=Ae^kt

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After four days of the experiment, y= 600.25 million, t=4

A is the amount of bacteria present at time zero  and t is the time after the experiment (in days)

At t=2 and y =49

 49=Ae^2k…………….. (1)

At t=4 and y = 600.25

600.25=Ae^4k………… (2)

Divide equation (2) by equation (1)

600.25/49=(Ae^4k)/(Ae^2k )

12.25=e^2k

Take natural log of both sides

ln⁡(12.25) =2k

2.505⁡ =2k

k=1.25

The exponential equation that models this situation is y=Ae^(1.25t)

8 0
3 years ago
What number is 10% of 5
harina [27]
You just need to divide 5 by 10
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6 0
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What is 2 5/10 x 3/4
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Answer: 1.87500 or 15/8 simplified 1 7/8

Step-by-step explanation:

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Read 2 more answers
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