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Sedbober [7]
2 years ago
11

A scientist is studying certain germs. She places 3 germs in a special solution that will help the germs grow. The number of ger

ms doubles every hour. How many germs will there be after 8 hours?
Mathematics
1 answer:
vivado [14]2 years ago
7 0
3*2 is 6 6*2 is 12 12*2 is 24 24*2 is 48 48*2 is 96 96*2 is 192 and 192*2 is 384
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I NEED help on this problem
gulaghasi [49]
Insufficient data please indicate the question 
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3 years ago
3. Is the relationship shown by the data linear? If so, model the data with an equation X | Y 1 ,5| 5,10| 9,15| 13,20|
son4ous [18]

Answer:

y=\frac{5}{4}x+\frac{15}{4}

Step-by-step explanation:

x | y

-------

1     5

5   10

9    15

13   20

This one is linear because as x goes up by the same number so does y. So the ratio of difference of y to difference of x is the same per pair of points.

So a linear equation in slope-intercept form is y=mx+b where m is the slope and b is the y-intercept.

To find the slope, I'm going to line up the points vertically and subtract, then put 2nd difference over 1st difference. Like so,

( 1    ,   5)

-( 5   ,  10)

----------------

-4          -5

So the slope is 5/4 which makes sense since the y's are going up by 5 each time and the x's are going up by 4 each time.

So we have m=5/4. Let's plug that into our y=mx+b.

y=5/4 x+b

To find b, we need to use y=5/4 x+b along with one of the given points.

Choose; it doesn't matter.  I like (1,5) I guess.

y=5/4 x +b with (1,5)

5=5/4 (1)+b

5=5/4    +b

Subtract 5/4 on both sides:

5-5/4=b

20/4-5/4=b  (Found a common denominator)

15/4=b

The y-intercept is 15/4 so b=15/4.

So the equation for the line in slope-intercept form is y=5/4 x +15/4.

y=\frac{5}{4}x+\frac{15}{4}

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3 years ago
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What is the solution to the system of equations below?
Lilit [14]

Answer:

  x,y = -4, -15

Step-by-step explanation:

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The price of a certain new car increases by the same amount each year. The first year it was $23,000 in in the 10th year it was
Katyanochek1 [597]
3450 is theeee answer!!!!!!!!!!!
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3 years ago
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3x+5y=27.50 &amp; 6x+3y=27<br><br>I love you ​
zvonat [6]

Answer:

what do u want me to do withthis question

can u edit then I’ll edit

Step-by-step explanation:

3 0
3 years ago
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