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PSYCHO15rus [73]
3 years ago
12

Matthew has been observing 10 bacteria in a petri dish for his science class. If the bacteria population doubles every 12 hours,

how many bacteria will be in the dish after 2 full days?
A. 20 bacteria
B. 40 bacteria
C. 80 bacteria
D. 160 bacteria
Mathematics
1 answer:
zheka24 [161]3 years ago
5 0
B 40 bacteria that's the answer lol
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3^-1 ___ 1/4<br><br> =<br> &lt;<br> &gt;<br> answer thanks
dybincka [34]

3⁻¹  is <u>greater than </u>1/4

<u>Step-by-step explanation:</u>

3⁻¹ is nothing but the inverse of 3 .

So it can be written as 1/3.

Value of 1/3 can be found by dividing 1 by 3 to be 0.333...

Value of 1/4 can be found by dividing 1 by 4 to be 0.25

So 0.333 > 0.25

1/3 > 1/4

∴ 3⁻¹ > 1/4

6 0
4 years ago
A total of 611 tickets were sold for the school play. They were either adult tickets or student tickets. There were 61 more stud
Sergio039 [100]

Answer:

Adult tickets=275

Step-by-step explanation:

form 2 equations from the given info.

x+y=611

y=x+61

x being the adults and y being the students tickets

then substitute the y equation into the first equation.

x+x+61=611

2x+61=611

2x=550

x=275

and you can check by putting 275 back into the original equations :)

7 0
3 years ago
Solve and justify each step<br> SHOW WORK<br><br> Solve: -4(n+5)&gt;3n+8
natulia [17]
-4n-20>3n+8

-7n-20>8

-7n<28
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7 0
4 years ago
Any one? I have to finish it today
Pie

Answer:

5. 80 sundaes

6. 679.25m

Step-by-step explanation:

5. It will be 16 divided by 0.2 since 0.2 is used for each sundae: 80 sundaes

6. So first we have to convert units: 0.75km to m = 750m

Now we have to subtract: 750 - 70.75 = 679.25m

8 0
4 years ago
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On this number line, zero represents sea level. Plot the following points based on the description provided by dragging and drop
zmey [24]

Answer:

why didn't nobody answer this its so many points

Step-by-step explanation:

3.5 + 5 + 4 + 8.5 = 21

3 0
3 years ago
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