A bacteria that starts with 3 cells increases by 15% every hour.
Write an exponential growth equation that models the situation
How many bacteria cells will there be in 13 hours?
Answer:
Step-by-step explanation:
In order to determine the equation, consider that any exponential growth equation can be written as follow:
[tex]f(t)=A(1+r)^t[/tex]
where,
f(t): amount of bacteria after t hours
A: initial amount of bacteria = 3
r: growth rate in decimal form = 0.15 (15%)
t: time in hours
By replacing the previous values into the expression for f(t) you get;
[tex]f(t)=3(1+0.15)^t\\f(t)=3(1.15)^t[/tex]
Hence, the answer is f(t) = 3(1.15)^t
Now, replace t = 13 to determine the amount of bacteria after 13 hours:
[tex]f(13)=3(1.15)^13\\f(13)=18.46[/tex]
Hence, after 13 hours there are approximately 18 bacteria
Jennifer reads a total of 186 pages over 3 hours. How many pages can she read per hour?
Answer:
62 per hour
Step-by-step explanation:
Divide 186 by 3.
Answer: 62 pages peer hour
Step-by-step explanation:
what ya do is divide the number of pages by the number of hours
186 = pages/3 = hours
ya answer
62 = pages/1 = hour
62 pages peer hour
Will give brainly for correct answer!!!! 30pts
Answer:
We are given a perimeter and three different lengths and we need to determine the corresponding width and area.
The first length that is provided is 2 feet and to get a perimeter of 16 feet which we can then use the perimeter formula to get 2(2 + 6) which gives us a perimeter of 16 feet and a width of 6 feet. We can then get the area by multiplying the length by width which gives us 12 feet squared.
The second length that is given is 4 feet and to get a perimeter of 16 feet which we can then use the perimeter formula to get 2(4 + 4) which gives us a perimeter of 16 feet and a width of 4 feet. We can then get the area by multiplying the length by width which gives us 16 feet squared.
The final length that is given is 5 feet and to get a perimeter of 16 feet which we can then use the perimeter formula to get 2(5 + 3) which gives us a perimeter of 16 feet and a width of 3 feet. We can then get the area by multiplying the length by width which gives us 15 feet squared.
Therefore, the field that would require the most amount of paint (the largest area) is option B, region #2.
Hope this helps!
7. A machine produces 900 light bulbs in 1 hour.
The rate is ___________ light bulbs per minute.
Answer:
15
Step-by-step explanation:
900 light bulbs per hour
60 minutes per hour
X lightbulbs per minute
Divide 900 lightbulbs by 60 minutes
15
The rate is 15 light bulbs per minute
Find the radius of the circle with the given diameter.
1. 8 inches
Answer:
The radius of a circle with a dimeter of 1.8 inches is 0.9 inches.
Step-by-step explanation:
To find the radius of a circle from diameter, you divide the diameter by 2.
When we divide 1.8 by 2 we get 0.9.
Can someone help me solve this and explain it to me so that I can get the hang of it? Thank you! (Extra Points)
Answer:
√4
Step-by-step explanation:
because 9x9=81
Hope this helps!!
You scored a 95% on your math quiz. The quiz was out of 60 points. How many points did you get?
A
59.05 points
B
55 points
C
58 points
D
57 points
Answer:
[D] 57
Step-by-step explanation:
Since the quiz was out of 60 point.
Then,
Using the formula:
Question correct ÷ Total × 100
1 ÷ 60 × 100 = 1.66666666667
2 ÷ 60 × 100 = 3.33333333333
3 ÷ 60 × 100 = 5
4 ÷ 60 × 100 = 6.66666666667
5÷ 60 × 100 = 8.33333333333
6÷ 60 × 100 = 10
7÷ 60 × 100 = 11.6666666667
8÷ 60 × 100 = 13.3333333333
9÷ 60 × 100 = 15
10÷60 × 100 = 16.6666666667
11÷ 60 × 100 = 18.3333333333
12÷ 60 × 100 = 20
13÷ 60 × 100 = 21.6666666667
14÷ 60 × 100= 23.3333333333
15÷ 60 × 100 = 25
16÷ 60 × 100 = 26.6666666667
17÷ 60 × 100= 28.3333333333
18÷ 60 × 100 = 30
19÷ 60 × 100 = 31.6666666667
20÷ 60 × 100 = 33.3333333333
21÷ 60 × 100 = 35
22÷ 60 × 100 = 36.6666666667
23÷ 60 × 100 = 38.3333333333
24÷ 60 × 100 = 40
25÷ 60 × 100 = 41.6666666667
26÷ 60 × 100 = 43.3333333333
27÷ 60 × 100 = 45
28÷ 60 × 100 = 46.6666666667
29÷ 60 × 100 = 48.3333333333
30÷ 60 × 100 = 50
31÷ 60 × 100=51.6666666667
32÷ 60 × 100= 53.3333333333
33÷ 60 × 100=55
34÷ 60 × 100= 56.6666666667
35÷ 60 × 100= 58.3333333333
36÷ 60 × 100=60
37÷ 60 × 100=61.6666666667
38÷ 60 × 100=63.3333333333
39÷ 60 × 100=65
40÷ 60 × 100 = 66.6666666667
42÷ 60 × 100=70
43÷ 60 × 100=71.6666666667
44÷ 60 × 100=73.3333333333
45÷ 60 × 100=75
46÷ 60 × 100=76.6666666667
47÷ 60 × 100=78.3333333333
48÷ 60 × 100=80
49÷ 60 × 100 = 81.6666666667
50÷ 60 × 100=83.3333333333
51÷ 60 × 100=85
52÷ 60 × 100=86.6666666667
53÷ 60 × 100=88.3333333333
54÷ 60 × 100=90
55÷ 60 × 100=91.6666666667
56÷ 60 × 100=93.3333333333
57÷ 60 × 100=95
Hence, the answer is [D] 57
Kavinsky
You scored 57 points on your math quiz. the correct answer would be an option (D).
What is the percentage?The percentage is defined as a ratio expressed as a fraction of 100.
You scored a 95% on your math quiz.
You have to determine the evaluation of 95% of 60.
⇒ 95% of 60
95% is expressed as 15/100 in fractional form
⇒ (15/100)(60)
95/100 is expressed as 0.95 in decimal form
⇒ (0.95)(60)
Apply the multiplication operation, and we get
⇒ 57
Therefore, 95% of 60 would be 57.
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Mathematics please help
Answer:
(1,2)
(3,4)
(5 ,6)
(7,8)
(9,10)
The relation is y = ×+1
What is the measure of∠y
Hint: ∠x is a right angle.
Find the sum. sum_k=3*6 k-5/k-1
PLEASE HELP I WILL NAME YOU THE BRAINIEST
Answer:
(1)
A : 1/3
B: 3/2
C: 3/5
(2.) : 3/4
(3): 2
Step-by-step explanation:
If the two spinners below are spun, what is the probability that the numbers will add to more than 4? 1/4 1/6 1/12 1/8
Answer:
1/8 , 1/16+1/16=1/18
Answer: 1/8 , 1/16+1/16=1/18
Step-by-step explanation: I did it
PLEASE HURRY I HAVE LIKE 3 MINS I WILL GIVE BRAINLIEST!!!
Find the surface area of a rectangular prism that has the dimensions shown.
length: 4.5 in.
width: 6 in.
height: 12 in.
S
A
=
in
2
Answer:
S(A) = 306 in²
Step-by-step explanation:
The surface area of a rectangular prism can be found using the following equation:
SA(rectangular prism) = 2(wl + hl + hw)
Note:
w = width = 6
h = height = 12
l = length = 4.5
Plug in the corresponding numbers to the corresponding variables:
SA(rectangular prism) = 2((6 * 4.5) + (12 * 4.5) + (12 * 6))
SA(rectangular prism) = 2((27) + (54) + (72))
SA(rectangular prism) = 2(27 + 54 + 72)
SA(rectangular prism) = 2(153)
SA(rectangular prism = 306
S(A) = 306 in²
How many different calculators are available?
I need this answer ASAP! Correct answer with explanation will get marked brainliest
12 different calculators
total = types x colors
total = 4 x 3 = 12
Answer: 12
GRAPHING COORDINATES (additional instructions in photo)
I really need help please once I get this done I’ll be able to go to a concert I’ve always wanted to go to I’m just so confused with this please help!!!
(Btw if you help with this question go answer the last one for more points)
Answer:
flip it
Step-by-step explanation:
just flip the existing coordinates and make the negative to positive
Answer: All you have to do is flip it
HELP PLEASEE I WILL GIVE 20 POINTS.
Answer:
The answer is 152
Step-by-step explanation:
They should add up to 180
REPOST Now h e l p
Thank you :)
Answer:
option C
Explanation:
For Naomi's rectangular prism:
⇒ Length × Width × Height
⇒ 5 × 14 × 2
⇒ 140 cm³
For Ben's triangular prism:
⇒ 1/2 × Base × Height × Length
⇒ 1/2 × 5 × 4 × 14
⇒ 140 cm³
The prism's have the same volume.
Answer: Choice C
===========================================================
Explanation:
The volume of the rectangular block is:
V = L*W*H = 5*14*2 = 70*2 = 140 cubic cm.
Now move onto the triangular prism.
The triangular face has a base of 5 cm and height of 4, so the area of this face is
A = base*height/2 = 5*4/2 = 20/2 = 10 square cm
Multiplying this with the depth of the prism tells us the volume is
V = (area of the base)*(depth) = (10 sq cm)*(14 cm) = 140 cubic cm
Therefore, the prisms have the same volume.
A spinner is divided into 6 equal sections. Two sections are green,two sections are blue, and two sections are yellow. What is the ratio of yellow sections to total sections?
A. 2:6
B. 1:6
C. 3:6
D. 4:6
Answer:
A. 2:6
Step-by-step explanation:
we want to find the ratio of yellow sections to total sections
we are given that there are 2 yellow sections and 6 total sections
so the ration of yellow to total sections would be 2:6
Answer:
A) 2:6
Step-by-step explanation:
There is 2 yellow sections and total of 6 sections.
So it is 2:6
Correct answer gets BRAINLIEST
Answer:
The perimeter is 380 ft^2.
Step-by-step explanation:
To find the perimeter of a rectangle, you have to use the 2(a+b) formula as a method of solving. This formula can also be written as a+b+a+b or 2a+2b.
To solve it, you input a as 51 and 139 as b, though this doesn't really matter all too much. Using the previously stated formula, you should get 2(51+139). Solving what's in the parenthesis first (51+139), you should get 190.
Now, you should have the answer 2(190). Finishing off the equation and multiplying 2 by 190, your answer will be 380 ft^2.
The points show below show different locations in joes town what is the distance in miles between joes home and the park? Round to the nearest ten
Answer:
4 miles
Step-by-step explanation:
Answer:
3.6
Step-by-step explanation:
Use Pythagorean therum for this problem
3² + 2² = c²
9 + 4 = 13
√13 = 3.6
William has 5 black t-shirts and 7 white t-shirts If he randomly selects a t-shirt to wear, what is the probability that it is black? Write the probability as a fraction in simplest form, as a decimal, and as a percent.
Answer:
a) as a simplest fraction in the simplest form, the answer would be 5/12
b) as a decimal it would be 0.41
c) as a percentage it would be 41.67%
You spin a spinner that is divided into 8 equal sections. Each section is labeled with a different number 1 through 8. How many possible outcomes are there?
Answer:
8 outcomes
if you are spinning the spinner once.
Answer:
8.
Step-by-step explanation:
Any one of the 8 sections can be the result of a spin.
5. SereN and Visala had a combined total of $180. SereN then gave Visala $20, and then Visala gave SereN a quarter of the money Visala had. After this, they each had the same amount. How much money did SereN start with?
The amount of money seren had will be $132.
what is a linear equation?
It is defined as the linear relation between two variables, if we plot the graph of the linear equation we will get a straight line.
Given that:-
Seren and Visala had a combined total of $180Seren then gave Visala $20, and then Visala gave Seren a quarter of the money Visala had. After this, they each had the same amount.
The solution will be done by making an equation:-
According to the first condition:-
S + V = $180
Now from the second condition:-
S - 20 + { ( v + 20 ) / 4 ) } = 180
Since S = v then:-
S - 20 + { ( S + 20 ) / 4 ) } = 180
S = $132
Therefore the amount of money seren had will be $132.
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Please help me with this I would give you 50 points.
FEET 1 4 5
INCHES 24 36
Answer: feet: 1, 2, 3, 4, 5
inches: 12, 24, 36, 48, 60
Step-by-step explanation:
There are 12 inches in a foot, therefore if you have 1 foot you have 12 inches, if you have 2 feet you have 24 inches becauase 2*12 = 24 and so on...
A company sells speakers for $23 each.
By the end of the week, they had sold $851 worth of speakers.
Which equation could you solve to find the number of speakers the company sold?
Answer:
You would divide.
Step-by-step explanation:
$851÷ $23= 37
I was supposed to post this earlier! (WILL GIVE BRAINLIEST)
Even If your wrong I will still give credit because Your amazing! ^^
Answer:
Volume of the prism = lwh
l = length = 2 cm
w = width = 3 cm
h = height = 7 cm
—
Volume = 2x3x7 = 42 cm³
—
Have a nice day!!
Answer:
the other person is right- 42 cm³
i took the test it should be that
i need some help on this! i need my grade to go up
!; What would the ordered pair be?
Answer:
(3, 2)
Step-by-step explanation:
y = 3x - 7
2x + 5y = 16
Solve for x:
2x + 5(3x - 7) = 16
2x + 15x - 35 = 16
17x = 51
x = 3
Solve for y:
y = 3(3) - 7
y = 9 - 7
y = 2
Answer:
(3, 2)
One half of one tenth is what fraction?
Answer: 1/20 or one twentieth
Work Shown:
1/2 = one half
1/10 = one tenth
(1/2)*(1/10) = (1*1)/(2*10) = 1/20
Basically we multiply the 2 and 10 to get 20 in the denominator.
Find the surface area of the right triangular prism (above) using its net (below).