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ValentinkaMS [17]
3 years ago
8

about 47% of the 15152 samples researchers found were bacteria. what percent of the samples were not bacteria?

Mathematics
1 answer:
timofeeve [1]3 years ago
3 0

47% of them were bacteria, which means 53% of them were not bacteria.

47+53=100 or 100-47=53

I hope this helps :)

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a shopkeeper fixed the marked price of his television to make a profit of 40% . Allowing 20% discount on marked price the televi
butalik [34]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Find the two multipliers:

40% ==> 1.4

20% ==> 0.8

Multiply them:

1.4 x 0.8 = 1.12

He will make a 12% profit.

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6 0
3 years ago
Solve for the values of x in the equation: <br> 2^(x) = 4x.
Eva8 [605]

There are two of them. 

I don't know a mechanical way to 'solve' for them.

One can be found by trial and error:

x=0 . . . . . 2^0 = 1 . . . . . 4(0) = 0 . . . . . no, that doesn't work
x=1 . . . . . 2^1 = 2 . . . . . 4(1) = 4 . . . . . no, that doesn't work
x=2 . . . . . 2^2 = 4 . . . . . 4(2) = 8 . . . . . no, that doesn't work
x=3 . . . . . 2^3 = 8 . . . . . 4(3) = 12 . . . . no, that doesn't work
<em>x=4</em> . . . . . 2^4 = <em><u>16</u></em> . . . . 4(4) = <em><u>16</u></em> . . . . Yes !  That works !       yay !

For the other one, I constructed tables of values for 2^x and (4x)
in a spread sheet, then graphed them, and looked for the point
where the graphs of the two expressions cross.

The point is near, but not exactly,         <em>x = 0.30990693...

</em>
If there's a way to find an analytical expression for the value, it must involve
some esoteric kind of math operations that I didn't learn in high school or
engineering school, and which has thus far eluded me during my lengthy
residency in the college of hard knocks.<em> </em> If anybody out there has it, I'm
waiting with all ears.<em>

</em>
7 0
3 years ago
Read 2 more answers
If l run 9/10 in five minutes how many I run in one minute
Illusion [34]
You would run .18 miles
6 0
3 years ago
What is the distance from the origin to point A graphed on the complex plane below?
Lisa [10]

Answer:

a. square root of 5

b. square root of 13

c. 9

d. 13

Step-by-step explanation:

6 0
3 years ago
Can someone help please ?
MAVERICK [17]

Answer:

B because Comp A is $60 for sure plus $42.95 per month and Comp B is $25 for sure and $49.95 per month

7 0
2 years ago
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