The doubling period of a bacterial population is 15 minutes. At time t= 80 minutes, the bacterial population was 90000
Answers
Answer:
here i finished!
hope it helps yw!
Step-by-step explanation:
The doubling period of a bacterial population is 15 minutes.
At time t = 90 minutes, the bacterial population was 50000.
Round your answers to at least 1 decimal place.
:
We can use the formula:
A = Ao*2^(t/d); where:
A = amt after t time
Ao = initial amt (t=0)
t = time period in question
d = doubling time of substance
In our problem
d = 15 min
t = 90 min
A = 50000
What was the initial population at time t = 0
Ao * 2^(90/15) = 50000
Ao * 2^6 = 50000
We know 2^6 = 64
64(Ao) = 50000
Ao = 50000/64
Ao = 781.25 is the initial population
:
Find the size of the bacterial population after 4 hours
Change 4 hr to 240 min
A = 781.25 * 2^(240/15
A = 781.25 * 2^16
A= 781.25 * 65536
A = 51,199,218.75 after 4 hrs
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Question 7
Answers
Workup in a photo below.
Good luck
Edge users, Help! Will give brainliest
Answers
Answer:
You do not need to get right just get one wrong and it will say demo, then keep doing that.
Step-by-step explanation:
Two waiters at a cafe each served 10 large fruit smoothies. The amount in each large smoothie is shown below. Witch Waiter's smoothies showed less variability
Answers
Answer:
Waiter’s B Large Smoothies showed less variability.
Step-by-step explanation:
First, we have to find the mean for Waiter A’s and Waiter B’s Large Smoothies.
1) Mean
Waiter A
19.1 + 20.1 + 20.9 + 19.6 + 20.9 + 19.5 + 19.2 + 19.4 + 20.3 + 20.9 = 199.9
199.9 / 10 = 19.99
Waiter B
20.1 + 19.6 + 20.0 + 20.5 + 19.8 + 20.0 + 20.1 + 19.7 + 19.9 + 20.4 = 200.1
200.1 / 10 = 20.01
Now, we have to use the Mean Absolute Deviation (MAD) to find which waiter’s smoothies showed less variability.
Waiter A
I19.99 - 19.1I = 0.89
I19.99 - 20.1I = 0.11
I19.99 - 20.9I = 0.91
I19.99 - 19.6I = 0.39
I19.99 - 20.9I = 0.91
I19.99 - 19.5I = 0.49
I19.99 - 19.2I = 0.79
I19.99 - 19.4I = 0.59
I19.99 - 20.3I = 0.31
I19.99 - 20.9I = 0.91
0.89 + 0.11 + 0.91 + 0.39 + 0.91 + 0.49 + 0.79 + 0.59 + 0.31 + 0.91 = 6.3
6.3 / 10 = 0.63
Waiter B
I20.01 - 20.1I = 0.09
I20.01 - 19.6I = 0.41
I20.01 - 20.0I = 0.01
I20.01 - 20.5I = 0.49
I20.01 - 19.8I = 0.21
I20.01 - 20.0I = 0.01
I20.01 - 20.1I = 0.09
I20.01 - 19.7I = 0.4
I20.1 - 19.9I = 0.2
I20.1 - 20.4I = 0.3
0.09 + 0.41 + 0.01 + 0.49 + 0.21 + 0.01 + 0.09 + 0.4 + 0.2 + 0.3 = 2.2
2.2 / 10 = 0.22
Now, we just have to compare those numbers.
0.63 > 0.22
So, Waiter B’s smoothies show less variability.
please help brainlist
Answers
Answer:
B
Step-by-step explanation:
The answer is B because if a line goes through (0,0) then it is automatically proportional.
The RBIs for 15 players from the 2010 Seattle Mariners are shown.
15 51 35 25 58 33 64 43 33 29 14 13 11 4 10
Find the Median
Find the lower quartile
Find the upper quartile
Find the IQR
Find the Range
WILL GIVE BRAINLIEST NO CAP ASAP PLS HELP ME
Answers
Lower quartile - 13
Upper quartile - 43
IQR - 30
Range - 60
A large field measures 70 feet by 25 feet. If the field will be divided into equal square garden plots, what size whoud the largest possible plot be with sides of whole number length?
Answers
Answer:
5 feets
Step-by-step explanation:
Give the field dimension :
70 feets by 25 feets
The largest possible size if field is divided into squares :
Obtain the greatest common factor of the length and width :
Factors of 70 : 1, 2, 5,7,14, 10, 35
Factors of 25 : 1, 5, 25
The greatest common factor = 5
Hence, the largest possible square plot will have a side length of 5 feets
A bowling alley and a skating rink both offer birthday party rentals. The bowling alley costs $5 per person plus a $15 room rental fee. The skating rink costs $3 per person plus a $20 room rental fee. You have $50. If you want to invite as many people as possible, which location should you choose?
Follow the steps to decide on the party location.
1. Write an expression for the amount you would spend on a birthday party at the bowling alley. Let x represent the number of people you invite.
2. Write an expression for the amount you would spend on a birthday party at the skating rink.
3. How many people could you invite to the bowling alley? Please show how you found your answer.
4. How many people could you invite to the skating rink? Please show your work.
Answers
Answer:
The skating rink is better choice for more peopleStep-by-step explanation:
1. Expression for the amount you would spend on a birthday party at the bowling alley:
5x + 152. Expression for the amount you would spend on a birthday party at the skating rink:
3x + 203. Total amount is $50
5x + 15 = 505x = 35x = 77 people
4. Total amount is $50
3x + 20 = 503x = 30x = 1010 people
Ms Lemon has $150 to spend on the parking and admission to the zoo.The parking will cost $18, and the admission tickets will cost $16.50 per person, including tax. Write and solve an equation that can be used to determine the number of people that she can bring to the zoo, including herself.
Answers
Answer:
Let y be the no. of people she can bring
18 + 16.5y <= 150
Step-by-step explanation:
Answer:
16.5y + 18 = 150
16.5y + 18 = 150
-18 -18
0 132
16.5y 132
16.5 16.5
y = 8
Ms.Lemon can bring 8 people including herself
Step-by-step explanation:
First you are going to rewrite the equation then do the inverse operation of addition. Then, subtract 150 from 18 then you get 132 then you bring down 16.5y and cancel it out by dividing and then you divide 132 by 16.5 and you get 8 so Ms.Lemon can bring 8 people including her self.
40 tickets were sold for a concert, some at 75 cents and the rest at $1.25. if the total raised was $42, how many had the cheaper ticket. please i need this for an assignment
Answers
Answer:
34
Step-by-step explanation:
$1.25 = 125 cents.
$42 = 4200 cents
Tickets sold at 75 cents = x
Tickets sold at 125 cents = y
x + y = 40
75x + 125y = 4200
Multiply the first equation by 75
75x + 75y = 3000
75x + 125y = 4200
Subtract the the second equation from the first.
75x + 75y = 3000
- 75x + 125y = 4200
-------------------------------
0 - 150y = - 1200
Divide both sides by - 150
-150y/-150 = -1200/-150
y = 8
Substitute y = 8 into the first equation
x + y = 42
x + 8 = 42
x = 42 - 8
x = 34
34 tickets were sold for 75 cents
8 tickets were sold for $1.25
How many 1/4-cup servings are there in 10/4 cups of dried beans
Answers
Answer:
2 2/4
Step-by-step explanation:
What's the answer...I'm kinda lost
Answers
Answer:
it would be D
Step-by-step explanation:
because you are reflecting the shape across the x axis
Help? Giving brainly!!
Answers
Answer:
C
Step-by-step explanation:
Answer:
The answer is 17 - (-3) = 20
Step-by-step explanation:
Since the bird was already 17 feet above the water, and he dove 3 feet under, you add them to get the total distance. Anything minus a negative is equivalent to adding it, as the two negatives make a positve.
Select the correct answer.
What is the simplified form of ?
A.
B.
C.
D.
Answers
Answer: A.
Step-by-step explanation: You were correct the first time!:)
Answer:
A
Step-by-step explanation:
A shirt that normally costs $19.99 is on sale for 15% off. How much does the shirt cost after the discount? $22.99 $19.99 $16.99 $24.50
Answers
Answer:
C. $16.99
Step-by-step explanation:
The shirt cost after the discount will be $16.99. thus option C is correct.
How to calculate the third party discounts?Third party discount is the multiplication result of the maturity value of the original rate to the rate of interest and time period.
Thus, we get:
Third party discount = Maturity value × R × T (R in decimal form).
We have been given that a shirt that normally costs $19.99 is on sale for 15% off. we are asked to find the discount on the shirt.
Therefore,
19.99 x 15/100
19.99 x 0.15 = 2.99
Then subtract from the total amount;
19.99 - 2.99 = 16.99
Therefore, the shirt cost after the discount will be $16.99. thus option C is correct.
Learn more about proceeds here:
https://brainly.com/question/27470570
#SPJ2
need a quick answer please
Answers
What's the question?
Just tell me and I will edit this answer.
Answer:
ok tell me brahhh
Step-by-step explanation:
what is the solution and the inequality and the graph
Answers
What is the range of f
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Answer:
that is the range of f
Step-by-step explanation:
f is that ..that is f..f is that
a
p
p
l
e
f
a
r
t
:)
a
a
a
a
a
a
a
a
a
a
a
a
Answers
mhmm..whichuksnackru?..fishnchiips OUHHHOOUUHHYESS SandyROASTthatsevenbaetterthanfishnchips
Kelvin ordered four pizzas for a birthday party. The pizzas were cut into eighths. How many slices were there? (Draw a picture to support your response; please)
Answers
Answer:
32 slices are there thankyou
Scott drove 754 miles in 13 hours how many miles would he drive in 8 hours
Answers
You would divide 13 by 754=58
Then 58 times 8= 464
So 464 miles
What is the least common multiple of 10 and 35?
Answers
Answer:
a multiple of both is 5 ...
Answer:
70
Step-by-step explanation:
10 35
10 35
20 70
30
40
50
60
70
If the cost of 12 pens is Rs.108, then what is the cost of 5 pens!!!
-Please write the full solution!
Answers
Answer:
45 rupees
Step-by-step explanation:
If the cost of 12 pens is 108 rs, then we need to find the cost for 1 pen. We can divide the 108 rupees by 12 to find the cost per pen. We get 9; now we know that each pen costs 9 rupees and we have 5 pens so 9 times 5 is 45 rupees.
HELP HELP HELP THERE'S A TIME LIMIT!!
Answers
Answer:
1 5 and 8 also equal 130
2 3 6 and 7 equal 50
Step-by-step explanation:
have a great day :D
Answer:
∠1= 130°
∠2= 50°
∠3= 50°
∠4= 130°
∠5= 130°
∠6= 50°
∠7= 50°
∠8= 130°
Step-by-step explanation:
angles 1&2 have to equal 180°
and so on for ∠3&4 and 5&6 and 7&8
180-130=50
Charlotte and her children went into a grocery store and she bought $8 worth of
apples and bananas. Each apple costs $1 and each banana costs $0.50. She bought a
total of 10 apples and bananas altogether. By following the steps below, determine
the number of apples, x, and the number of bananas, y, that Charlotte bought.
Answers
Answer: six apples 4 bannanas, brainleist?
Answer:
x=4
y=6
Step-by-step explanation:
BRAINLIEST????
A 34-inch piece of wood is 2.4% of a longer piece of wood. How long is the longer piece of wood? Show your work. You can use proportions
Answers
Cross multiply to get 2.4 L = 3400, then divide both sides by 2.4 to be left with
L = 3400/2.4, so
L = 1416.666...
So the longer piece of wood is 1,416.66... inches long.
Hope this helps!!:)
I will give brainlist
Use the GCF to factor 7+35
Answers
Answer:
The Greatest Common Factor (GCF) for 7 and 35, notation CGF(7,35), is 7. Explanation: The factors of 7 are 1,7; The factors of 35 are 1,5,7,35..
Step-by-step explanation:
A Sea-doo rental agency charges $100 as a flat rate, and $50 for every hour rented. Complete a table of values for this scenario. Then, draw a graph of this scenario with appropriate labels.
Answers
Answer:
so if it was one hour it would be 100+50
2 hours= 100+100
3=100+ 150
and so on
Step-by-step explanation:
what is 5674324 / -6
Answers
Answer:
-2837162/3
Step-by-step explanation:
5674324/-6
-5674324/6
-2837162/3
What is the coefficient of x² -14x + 49=0 :
Wich one? :
A. a=2, b=-14, c=49
B. a=1, b=-14, c=49
C. a=-14, b=49, C=1
D. a=49, b=-14, C=1
E. a=1, b=49, C=-14
I need your help
Answers
B. a=1, b=-14, c=49
PLZ HELP WILL GIVE BRAINLIST IF CORRECT!!!
Answers
Answer:
The car can go 28.75 miles or 115/4 miles or 28*3/4 miles(either one works)
Step-by-step explanation: