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labwork [276]
2 years ago
7

In a lab experiment, 3400 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to do

uble every 8 hours. How long would it be, to the nearest tenth of an hour, until there are 13700 bacteria present?
Mathematics
1 answer:
nalin [4]2 years ago
3 0

Answer: 16.1

Step-by-step explanation:

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Put this equation into slope- intercept form. -2x + 3y = 9​
AveGali [126]

Answer:

y = 2/3x + 3

Step-by-step explanation:

In order to put it in slope intercept form (y = mx + b), y needs to be isolated.

Add 2x to both sides:

-2x + 3y = 9​

3y = 2x + 9

Then, divide both sides of the equation by 3.

3y = 2x + 9

y = 2/3x + 3 is the equation in slope intercept form

8 0
3 years ago
Henry ran five races, each of which was a different positive integer number of
dolphi86 [110]

Answer:

10 miles.

Step-by-step explanation:

Let x be the number of miles on Henry's longest race.

We have been given that Henry ran five races, each of which was a different positive integer number of  miles.

We can set an equation for the average of races as:

\frac{\text{The sum distances of 5 races}}{5}=4

As distance covered in each race is a different positive integer, so let his first four races be 1, 2, 3, 4.

Now let us substitute the distances of 5 races as:

\frac{1+2+3+4+x}{5}=4

\frac{10+x}{5}=4

Let us multiply both sides of our equation by 5.

\frac{10+x}{5}*5=4*5

10+x=20

Let us subtract 10 from both sides of our equation.

10-10+x=20-10

x=10

Therefore, the maximum possible distance of Henry's longest race is 10 miles.

7 0
3 years ago
Complete the steps to solve for x.
hram777 [196]

Answer:

-0.49x+0.19x=6.6

-0.3x=6.6

x=-22

5 0
2 years ago
An equilateral triangle is a triangle that has three sides of the same length. the perimeter of an equilateral triangle is 48.6
aleksklad [387]
We know that a triangle has three sides, all the same length (its equilateral, after all)

The equation to find the length of each side is

Perimeter divided by 3

or in this case

48.6 divided by 3=16.2cm (don't forget the unit)

Hope that helps :)
3 0
3 years ago
Read 2 more answers
There is an 80% chance of rain tomorrow and a 20% chance the football game will be postponed. What is the probability that it wi
OlgaM077 [116]
First turns those into fractions, now you should have 4/5 and 1/5.
Now to generate a chance the 2 events will happen in a row (Like rain and a postponed game) you need to multiply the 2 fractions together so it should come out with 4/25 or 16%
3 0
3 years ago
Read 2 more answers
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