Last week the number of bacteria in a petri dish was 2.25×102. This week the number of bacteria in the petri dish is 2.75×105. How many times more bacteria are in the petri dish this week?

Round the decimal to the nearest tenth.There are
____ × 10____
times more bacteria in the petri dish this week compared to last week.

Answers

Answer 1

Answer:

Step-by-step explanation:

2.75 x 10⁵ ) / (2.25 x 10² )= (2.75 / 2.25) x 10⁵⁻²= 1.2 x 10³ times .(That's 1,200 times as many.)


Related Questions

please help and explain i’ll mark brainliest!! worth a lot of points too

Answers

I’m gonna say that it’s ... 112

17. Carole Winer deposits the following in her checking account: 7 five-
dollar bills, 3 two-dollar bills, 18 one-dollar bills, 9 half dollars, 15
quarters, 99 dimes, 48 nickels, 16 pennies, and a check for $28.32.
What is her total deposit?

Answers

All of that is $70.13

Multiple Choice
Describe how the graphs of y = |x| and y = |x| – 15 are related.
A. The graphs have the same shape. The y-intercept of y = |x| is 0, and the x-intercept of the second graph is –15.
B.
The graphs have the same y-intercept. The second graph is steeper than y = |x|.

C. The two graphs are the same.
D. The graphs have the same shape. The y-intercept of y = |x| is 0, and the y-intercept of the second graph is –15.

Answers

Answer:

D is correct

Step-by-step explanation:

A graph of that sort will make a perfectly mirrored "V" shape, and with no offset, the bottom point will be on the y axis.  This means that the first equation will intercept the y axis at zero, the second will intercept the y-axis at -15.

"A" may seem correct also, as the second graph will intercept the x-axis at -15, but it is not complete, as it will intercept that axis at +15 as well.

Fill in the table using this function rule

Answers

21, 26, 36, 46 you just have to fill in x with the numbers on the chart to and put them in the equation

Find the distance between the two points rounding to the nearest tenth (if necessary).
(3,-3) and (-3,5)

Answers

Answer:  My written explanation may come out weird so I will screenshot it

d = 10

For:

(X1, Y1) = (3, -3)

(X2, Y2) = (-3, 5)

Distance Equation Solution:

d=(−3−3)2+(5−(−3))2−−−−−−−−−−−−−−−−−−−√

d=(−6)2+(8)2−−−−−−−−−−√

d=36+64−−−−−−√

d=1–√00

d=10

The wholesale cost of a bicycle is $98.75.

The markup for the bicycle is 33.3%. Find

the selling price of the blcycle. Round to

the nearest cent. (Answer please)

Answers

Answer:

$131.60

Step-by-step explanation:

For the promotion, markup is 33.3% of the selling price.

Now, Selling Price = Cost price + Cost price*Markup

Selling Price = $98.75 + $98.75*33.3%

Selling Price = $98.75 + $32.88375

Selling Price = $131.63375

Selling Price = $131.60

Thus, the selling price of the bicycle after calculating the markup is $131.60.

Please help goingsleepy I'll mark brain crown

Answers

Answer:

7 cups and a half (7 1/2)

Step-by-step explanation:

(5/4)(6) = 30/4 = 15/2 = 7 cups and a half

Answer:

7 cups and a half :}

Help please answer me if u can

Answers

Answer:

the fourth one

Step-by-step explanation:

draw the koordinate plan if you can first

nick, janet, huiju, and amanda go to the world's largest brat fest. each of them is equally likely to order a meat brat, a hot dog, or a veggie brat. what is the probability that $2$ of them order a meat brat, and the other two order hot dogs?

Answers

The opportunity that 2 of them order a meat brat, and the other  order warm puppies = 2/27

The chance of any one of them ordering a meat brat / dog is 1/3.

the 2 human beings that can be selected to select each of different ingredients in

     ⁴C₂= 6;

The probability that 2 of them order a meat brat, and the other two order hot dogs = 6 × (1/3)⁴ = 2/27;

What is probability explain?

probability is a measure of the chance of an event to arise. Many activities can't be expected with total fact. we will predict handiest the chance of an event to occur i.e. how possibly they are to happen, using it

probability is the department of mathematics regarding numerical descriptions of ways probably an event is to occur, or how in all likelihood it is that a proposition is genuine. The opportunity of an occasion is various among zero and 1, where, more or less speakme, zero indicates impossibility of the event and 1 suggests truth

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can someone pls help me with this?
15х – бу = 6

Answers

Answer:

x=2/5y+2/5

Step-by-step explanation:

x=2/5+2y/5

EXPLANATION-
Move all terms that don't contain x to the right side & solve

8
Given the summation E (3 + 2n),
n=1
a. Write the first four terms of the sequence.

Answers

Answer:

(e^3 / e^2n)

Step-by-step explanation:


Examine the following table, which represents some points on a line.
(3,-3), (0,-2), (-3,-1), (-6,0),(-9,1)

What is the equation for the line in slope-intercept form?

Answers

The equation of the line will be , y=(-1/3)x-2.

Let the points represented by the given points on a line .
We well know the equation of the line.
So equation of the line is,
y = mx+b.
Where m= slope of the line
b= y intercept.
Now, let the points lying on the line are
(0,-2) nad (3,-3).
We know that ,
Slope of the line 'm' = (y2-y1)/(x2-x1).
m=-2-(-3)/0-3
m=-2+3/0-3
m= 1/-3.
y intercept 'b' = (-2).
Then , equation of the line is
y = (-1/3)x-2


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Adsila and Carlos volunteer to fill gift boxes for soldiers serving overseas. Both work at a constant rate. They work together for 4 hours and fill 108 boxes, Adsila fills 11 boxes every hour. How many boxes does Carlos fill every hour?

Answers

Answer:

Carlos fills 16 boxes per hour.

Step-by-step explanation:

Given that:

Adsila and Carlos are working together to fill the gift boxes for soldiers.

Number of boxes filled while working together in 4 hours = 108 boxes

Number of boxes filled while working together in 1 hour = [tex]\frac{108}{4} = 27[/tex] boxes per hour

Number of boxes filled by Adsila every hour = 11 boxes

To find:

Number of boxes filled by Carlos every hour = ?

Solution:

Number of boxes filled every hour while working together = Number of boxes filled every hour by Adsila + Number of boxes filled every hour by Carlos

Number of boxes filled every hour while working together = 27 = 11 + Number of boxes filled every hour by Carlos

Number of boxes filled every hour by Carlos = 27 - 11 = 16

Rachel drove 140 miles on 5 gallons of gas. At this rate, how far could she drive on 9 gallons of gas?

Answers

Answer: 252 miles on nine gallons of gas.

Step-by-step explanation:

Find how many miles Rachel can travel on 1 gallon of gas by dividing 140 by 5 to get 28.

After getting 28, multiply it by 9 to get 252.

Therefore, Rachel, on nine gallons of gas, can travel 252 miles.

Hope this helped you out, dawg.

Solve the formula V = s²h for s.​

Answers

Answer:  [tex]s=\sqrt{Vh}[/tex]

Step-by-step explanation:

[tex]V = s^2h\\[/tex]

divide both sides by h to isolate s

[tex]Vh=s^2[/tex]

since s is squared, square root both sides to make s not squared

[tex]\sqrt{Vh}=\sqrt{s^2}[/tex]

Vh isn't a numerical value so no need to simplify anything just leave everything as is, so you should get:

[tex]s=\sqrt{Vh}[/tex]

Bob and Alice have designed and created a website for their high school. The first week they had 5 visitors to the site; the second week, they had 10 visitors; and during the third week, they had 20 visitors. If the trend continues, how many visitors can they expect in the fifth week? Explain your answer.

Answers

Answer:

80 visitors

Step-by-step explanation:

From the above question, we can see that:

The trend is explained using geometric sequence

The formula for Geometric sequence is given as:

an = ar ^n - 1

Where a = first term

r = common ratio

n = number of terms

an = nth term

From the above question, let the number of term be equal to the number of weeks.

First week = First term = 5

Second week = Second term = 10

Third week = Third term = 20

Common ratio = a2/a1 = a3/a2 = 10/5 = 20/10 = 2

We are to find the number of visitors for the Fifth week = fifth term,

Hence:

a5 = 5 × 2^5 - 1

a5 = 5 × 2^4

a5 = 80 visitors

The number of visitors we can expect for the fifth week = 80 visitors

Question is in the picture

Answers

Answer:

10

Step-by-step explanation:

70 / 70 = 1

700 / 70 = 10

The rate is 70.

Answer: 10 weeks

Step-by-step explanation:

3  weeks ould be 70 *3

so for 700  books it would be 700/70 and you would get 10

what is the value of x in the equation 3x = 4 + x + 6?​

Answers

Answer:

x = 5

Step-by-step explanation:

3x = 4 + x + 6

2x = 10

x = 5

Step-by-step explanation:

x = 5 is the answer for the question

Find the length of side x in simplest radical form with a rational denominator.

Answers

Answer:

x = 5[tex]\sqrt{2}[/tex]

Step-by-step explanation:

Using the cosine ratio in the right triangle and the exact value

cos45° = [tex]\frac{1}{\sqrt{2} }[/tex] , then

cos45° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{5}{x}[/tex] = [tex]\frac{1}{\sqrt{2} }[/tex] ( cross- multiply )

x = 5[tex]\sqrt{2}[/tex]

[tex]2\frac{1}{7} +1\frac{1}{4}[/tex]

Answers

first make both into improper fractions by multiplying the whole number with the denominator and adding the numerator.

you will get 15/7 and 5/4

then you have to make the denominator the same, make it into 28 because 7x4 is 28.

remember to multiply the numerators too.

you will get 60/28 and 35/28.
add the numerators which will be 95
your answer will be 95/28

What is the number that when you multiply by 2 and add 7 to the product you get is 10.8 pls answer

Answers

Answer:

1.9

Step-by-step explanation:

2x+7=10.8

2x=3.8

x=1.9

1.9x2=3.8+7=10.8

The required number is 1.9, when multiply by 2 and add 7 to the product gives 10.8.

What are equation models?

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
let the number be x,
According to the question,
2x + 7 = 10.8

Simplifying the above expression,
2x = 10.8 - 7
2x = 3.8

x = 1.9

Thus, the required simplified value of the given equation model is 1.9.

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Maureen spends four times as long riding the train each day as riding the bus. If she spends 75 minutes on the bus and the train all together, how long did she spend riding the train ​

Answers

Answer:

60 minutes or 1 hour

Step-by-step explanation:

Set x as the amount of time she spends riding the bus

75 = time on bus + time on train

She spends 4 times as long on the train as on the bus so the time she spends on the train is 4x

75 = x + 4x

75 = 5x

x = 15 minutes on the bus

Since she spends 4 times as long on the train, we do 4 x 15 and we get 60 minutes which is 1 hour

Short Response
6. Are the triangles at the right simílar? Explain.

Answers

Answer:

Yes they are similar because they are both right angles but the one on the right is bigger than the one on the left.

Step-by-step explanation:

Cant do this either pls help

Answers

That’s 18 K is 18 …….

what is 8x - 4 is less than -36 show all work

Answers

Answer:

x>-4

Step-by-step explanation:

8x-4>-36

add 4 to both sides          8x>-32

divide both sides by 8      x>-4

a) An agent sold some carpets at the rate of Rs 4500 each and received Rs 9000 as commission
at 10%. Find the number of carpets he sold.​

Answers

Answer:

A

Step-by-step explanation:

not sure gusto ko lang tumulong

Rs 9000 = 10%
Multiply by 10
Rs 90,000 = 100%

90,000/4500 = 20 Carpets sold

A rectangular computer monitor is measured by the length and width of its display resolution. Three different monitors are described below. Monitor A has a display resolution of 640 pixels by 480 pixels. Monitor B has a display resolution of 800 pixels by 600 pixels. Monitor C has a display resolution of 1,280 pixels by 800 pixels. Which of the monitors are similar, based on their display resolution

Answers

Answer: Monitors A and B

Step-by-step explanation:

The similar monitors based on display resolution are those with similar ratios.

Take the ratios to their simplest forms to see which are similar.

Monitor A

= 640 : 480

= 16 : 12

= 4 : 3

Monitor B

= 800 : 600

= 8 : 6

= 4 : 3

Monitor C

= 1,280 : 800

= 32 : 20

= 8 : 5

Monitors A and B are similar as they have the same display ratio.

Help me please kejdhdhsksksksjsjdjdjhdhshshauuaudifiidusushhshsuduuddu

Answers

Answer:

Step-by-step explanation:

i will choose a

Whats The Answer Marking Brainliest, Please explain your answer:D..........

Answers

Answer: A

2^2 = 4
6-4= 2
and 4*2 equals 8.
The answer should be A

Write an equation for the nth term of each arithmetic sequence. Then find the 12th term of the sequence.
as = 14, d = -3

Answers

We need to know about arithmetic sequence to solve this problem. The equation for the nth term of each arithmetic sequence is a+(n-1)d and the 12th term of the sequence is -19.

An arithmetic sequence is a sequence of numbers where the difference between consecutive numbers is constant. If a,b and c are in arithmetic sequence then we can say that 2b=a+c. If the starting value of an arithmetic sequence is a and the difference between every consecutive number is d, then we can write the second number as a+d, the third as a+2d and so on. So for the nth term of an arithmetic sequence the equation is

nth term=a+(n-1)d where a is the starting value, d is the constant difference

We have been given the value of a and d, a=14 and d=-3, we need to find the value of the 12th term of the sequence.

12th term= a+(n-1)d= 14+(12-1)x(-3)=14-33=-19

Therefore we found out using the concept of arithmetic sequence that the equation for the nth term is a+(n-1)d and the 12th term of the sequence is -19.

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