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GarryVolchara [31]

3 years ago

9

The amoebas on a petri dish is doubling every 5 minutes. If there are currently 8 amoebas on the dish, how many will there be in

1 hour?

1 answer:

pychu [463]3 years ago

3 0

Answer:

32,768.

Step-by-step explanation:

There are 12 lots of 5 minutes in 1 hour.

The equation is 8*(2^12)

= 8 * 4096

= 32,768.

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2 years ago

Solve and show all work |2×+3| -6=11

mash [69]

Answer:

x = -10; x = 7

Step-by-step explanation:

|2x + 3| - 6 =11

Add 6 to each side.

|2x + 3| = 17

Apply the absolute rule: If |x| = a, then x = a or x = -a.

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Subtract 3 from each side

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<em>Check: </em>

(1) |2(7) + 3| - 6 = 11 (2) |2(-10) + 3| - 6 = 11

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7 0

4 years ago

A train travels from Washington DC to new york(225 miles). The train departs at 4:55 PM and arrives in New York at 7:55 PM. What

mylen [45]

Answer:

The average speed is:

$\var{v}=75\: miles/h$

Step-by-step explanation:

The average speed equation is given by:

$\var{v}=\frac{\Delta x}{\Delta t}$

Were:

Δx is the displacement (225 miles)
Δt is the change in time (3 hours)

Then we have:

$\var{v}=\frac{225}{3}$

$\var{v}=75\: miles/h$

I hope it helps you!

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3 years ago