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Number & Quantity Videos 5 videos

ACT Aspire Math: Working with Exponents to Solve for y
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Emma wants to buy fruit that costs $0.24 per ounce. She makes $10 per hour at her part-time job.How many hours does Emma need to work to buy 20 pou...

ACT Aspire Math: Finding Cube Roots
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A strain of bacteria multiplies by a factor of x every two milliseconds.If there are 64 bacteria after six milliseconds and one bacterium was initi...

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ACT Aspire Math: Finding Cube Roots 5 Views


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Description:

A strain of bacteria multiplies by a factor of x every two milliseconds.

If there are 64 bacteria after six milliseconds and one bacterium was initially present, what is x?


Transcript

00:03

Okay Next matthew Drill for you Aspiring people A strain

00:08

of e Coli bacteria multiplied by a factor of ex

00:11

every two milliseconds If there are sixty four bacteria after

00:15

six milliseconds and one bacterium was initially present what is

00:20

x Well e Coli has a bad rap but apparently

00:27

there are quite a few good guys in this gang

00:30

of bacteria that or they've hired an excellent pr firm

00:33

to revamp their image If the strain of bacteria multiplies

00:36

every two milliseconds and six milliseconds passed then the bacteria

00:41

has multiplied three times right So that would be x

00:44

cubed In other words we're looking at the cube root

00:47

of sixty For which four times for sixteen times on

00:51

before is sixty four Yeah we're looking at a strain

00:53

that multiplies by four every two milliseconds We're going to 00:00:58.423 --> [endTime] go wash our hands Yeah answer is b

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