PLEASE HELP ASAP
How many hours will it take a culture of bacteria to increase from 20 to 2000 if the growth rate per hour is 50%

Answers

Answer 1

Answer:

200 hours

Step-by-step explanation:

if it increases by 50% of 20 an hour, so it increases 10 and hour. 2000÷10=200


Related Questions

What is the slope of the line?
y + 2 = -22 - 3)

Answers

Answer:

Slope is 0

Step-by-step explanation:

Simplify to get y= -27

then you can see that the slope is 0

Hope it helps :)

Simplify each expression. Justify each step
4 x 9 x 50 =

Plz fast

Answers

Well, we are asked to simplify and solve this multiplication problem.
So, at first, this looks a little bit tricky but, we can actually break it down and then multiply with easy numbers.
First off, we can multiply 4 by 9 which is 45 however, we still have that major 50 so, to make it easier, we can just change the 50 to a 5 and then add the 0 at the end when we get our answer.

45 * 5
= 225

Lastly, we just need at put and add a zero (0) to our answer so, in conclusion, the answer to this question is: 2250.

At a local fitness​ center, members pay a ​$10 membership fee and ​$4 for each aerobics class. Nonmembers pay ​$6 for each aerobics class. For what number of aerobics classes will the cost for members and nonmembers be the​ same?

Answers

Answer:

5 classes

Step-by-step explanation:

Let x represent the number of aerobics classes

Create an equation that sets the member and nonmember prices equal to each other, then solve for x:

4x + 10 = 6x

10 = 2x

5 = x

So, after 5 aerobics classes, the costs will be the same.

if I go into the store with $26 and I leave and come out with $11.70 how much did I spend​

Answers

Answer:

$14.30

Step-by-step explanation:

26 - 11.70 = 14.30

3x +8y+13x need help ASAP​

Answers

Answer:

16x + 8y

Step-by-step explanation:

Answer:

16x+8y

Step-by-step explanation:

3x +8y+13x

combine like terms

16x+8y

An iPad that was originally on sale for $1075 is now on sale for $ 623.50. What is the percent markdown( percent decrease)?

Answers

Answer = 58%

Explanation : you would have to set up a portion table were the sale amount (623.50) would go and the original/total price would go (1075$) and since you are trying to find the % you would put x over 100 , and then cross multiply while it’s set up so 623.50 times 100 =62,350 and you would take the answer and divide it by 1075x which would get you to 58 and that would equal x .

8) x - 5y = -15
x - 2y = -12

Answers

Answer:

If solving for X. (didn't know if you were solving for X or Y.

x=2y-12

x=5y-15

Step-by-step explanation:

x-2y=-12

+2y on both sides

x=2y-12

x-5y=-15

+5y on both sides

x=5y-15

Answer:

x = -10

y = 1

Step-by-step explanation:

x - 5y = -15

x - 2y = -12

__________--

-3y = -3

y = -3/-3

y = 1

x - 2y = -12

x - 2(1) = -12

x - 2 = -12

x = -12 + 2

x = -10

Which is a true statement?

Answers

Answer:

A

Step-by-step explanation:

-18 is an integer and a whole number

find the value of each variable in the parallelogram

Answers

Answer:

1. x = 15°

2. y = 12

Step-by-step explanation:

1. Determination of the value of x.

(5x – 5) + 110 = 180 (Adjacent angles add up to 180)

5x – 5 + 110 = 180

5x + 105 = 180

Collect like terms

5x = 180 – 105

5x = 75

Divide both side by 5

x = 75/5

x = 15°

2. Determination of the value of y.

3y – 4 = 2y + 8 (opposite sides are equal)

3y – 4 = 2y + 8

Collect like terms

3y – 2y = 8 + 4

y = 12

What is the answer to this question?​

Answers

Number 3 because it makes the most sense

What is the fraction that is equivalent to 3/5

Answers

Answer:

6/10

Step-by-step explanation:

Answer:

6/10

Step-by-step explanation:

hope this helps

How do you simplify (5g^4h^3)^3? Simplify using exponent rules, please do not completely answer

Answers

Answer:

5^3·g^12·h^9  or 125g^12·h^9

Step-by-step explanation:

Identify the coordinates for point D Awnser. Fast!​

Answers

(1, 1.5)

i hope it’s correct!

Answer:

(1,1.5)

Step-by-step explanation:

x = 1

y = 1.5

-X – 3, solve for a when g(x) = 6.
PLSSS

Answers

the answer is -9 when g(x) is 6

y + 5 = (x + 3)
slope (m): ?
coordinates: ?

Answers

Answer:

Your slope would be: -5

Step-by-step explanation:

First we need to format it into a linear equation which is: y= mx+b

y+5= (x+3)

and than minus 5 on each side to get:

y=(x+3)-5

than use distributive property to get:

y= -5x+-15

your slope would be:

-5

and than you can get any coordinates from the line if you graph the line on the site "desmos" so just use that site :)

hope it helps!

help, i need you to find the area

Answers

Answer:

98

Step-by-step explanation:

Formula Base * Height

7*14=98

Answer:

77 inches

Step-by-step explanation:

The formula for area of a trapezoid is [tex]\frac{b_{1} + b_{2}}{2} h[/tex]. In this case, first add base 1 (8) + base 2 (14) to get 22. Now divide 22/2 to get 11. Now multiply 11 by the height (7), to get 77 in.

Hope it helps!

Your friend needs your help. His parents have told him that it is time for him to start paying for his own cell phone. After completing some research on the internet, you have narrowed down his options. Option 1 charges $0.30 for each cell phone call and $25 for unlimited text messaging. Option 2 charges a flat rate of $40.

Which plan is the best option?​

Answers

Answer:

For less than 50 calls, option 1 is the best, while for more than 50 calls, option 2 is the best.

Step-by-step explanation:

Option 1:

For n calls, the cost is given by:

[tex]C_{1}(n) = 25 + 0.3n[/tex]

Option 2:

The cost is flat of 40, so [tex]C_{2}(n) = 40[/tex]

Which plan is the best option?​

Depends on the number of calls, as for a high number, [tex]C_1[/tex] will be higher than [tex]C_2[/tex]. We have to find this number. So

[tex]C_{1}(n) > C_{2}(n)[/tex]

[tex]25 + 0.3n > 40[/tex]

[tex]0.3n > 15[/tex]

[tex]n > \frac{15}{0.3}[/tex]

[tex]n > 50[/tex]

This means that for less than 50 calls, option 1 is the best, while for more than 50 calls, option 2 is the best.

Math PLEASE HELP IM SO CONFUSED IM ATTACHING THE SLIDES!!!!

Answers

Answer:

x = 19, TS = 22

Step-by-step explanation:

Use ratios to solve for x. Corresponding sides have same ratio.

Q1

(x + 5)/30 = (36 - 20)/20(x + 5)/30 = 16/20 = 4/55(x + 5) = 4(30)5x + 25 = 1205x = 95x = 19

Q2

(5x - 2)/(3x + 1) = 39/26(5x - 2)/(3x + 1) = 3/22(5x - 2) = 3(3x + 1)10x - 4 = 9x + 310x - 9x = 3 + 4x = 7

TS = 3x + 1 = 3(7) + 1 = 22

3r^2 if r = 1/6 can someone help me please.

Answers

Answer:

Step-by-step explanation:

Answer:

f = 1/18ir^3

Step-by-step explanation:

Let's solve for f.

3r2ifr=1/6

Step 1: Divide both sides by 3ir^3.

3fir3/3ir3 =1/6/3ir3

f=1/18ir3

Solve B/3= 18
Please help

Answers

Answer:

[tex]b=54[/tex]

Step-by-step explanation:

Solve for  [tex]b[/tex]  by simplifying both sides of the equation, then isolating the variable.

Hope this helps :)

-ilovejiminssi♡

Answer:

B=54

Step-by-step explanation:

B/3=18

B=18×3

so, B=54

Ans

3x-7 if x =6 i need help plz

Answers

11 because 3 x 6 is 18 then minus 7 makes it 11

11

Step-by-step explanation:

Substitute the value of the variable into the equation and simplify.

I'm fishing. The probability of catching a fish on each cast of my rod (each attempt) is 0.23. Each attempt is independent. If I made 12 attempts and wanted to find the probability that I caught 2 or fewer fish, is this a geometric or binomial situation

Answers

Answer:

This is a binomial situation.

Step-by-step explanation:

For each attempt, there are only two possible outcomes. Either you catch a fish, or you do not. This can mean that either we have a binomial distribution, or a geometric.

However, each attempt is independent, which means that in each attempt, the probability of catching a fish is the same, and that this is a binomial situation.

The probability of catching a fish on each cast of my rod is a binomial distribution.

 

From the question, we can see that there are two possibilities which are whether you catch a fish or not. This gives two possibilities showing that we have a binomial distribution.

 

However, each attempt is independent, which means that one attempt does not affect the other. This is therefore a binomial situation.

Hence the probability of catching a fish on each cast of my rod is a binomial distribution.

Learn  more on binomial probability here: https://brainly.com/question/15246027

if a number n is a multiple of two,then n is even.​

Answers

Answer:

yes any multiple of 2 is even

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Answers

Answer: base times height divided by two

4) -3x - 2y = -17
9x + 2y = 23
A) (1,7)
B) (10,7)
C) (5, 7) D) (-7, 7)

Answers

Answer:

A). (1, 7)

Step-by-step explanation:

-3x – 2y = -17

9x + 2y = 23

____________+

6x = 6

x = 6/6

x = 1

9x + 2y = 23

9(1) + 2y = 23

9 + 2y = 23

2y = 23 - 9

2y = 14

y = 14/2

y = 7

Identify if the sequence is arithmetic, geometric, or neither. 9, 7, 5, 3, ...

Answers

Answer:

arithmetic

..........

how to write 8 + 9x in algebraic expression​

Answers

Answer:

17x

Step-by-step explanation:

Answer:

8+9+x?

Step-by-step explanation:

Catherine has an unpaid balance on her credit card of $345.38. She has new charges of $195.65 this month and her monthly interest rate on the unpaid balance is 1.75%. What is the total balance on her monthly bill (to the nearest whole cent)?
$561.90
$555.55
$550.50
$570.08
None of these choices are correct.

Answers

Answer:

345.38+195.65+((345.38×(0.0175÷12))

=541.53

Stella is writing an essay. She writes 2 pages in 16 minutes. The number of pages represented by p and time is represented by t. [2 points]



Part A) Fill in the table below.

Pages (p) Time (t)
2 16
(a) 32
5 (b)

Answers

Answer:

I think the answer is 32

Step-by-step explanation:

if you multiply 16×2 it will equal 32

A box contains 48 marbles. Two-thirds of the marbles are red. Three-fourths of the red marbles in the box are red and striped. How many of the marbles in the box are red and have stripes?
A.24 marbles
B.12 marbles
C.32 marbles
D.16 marbles

Answers

Answer:

C

Step-by-step explanation:

Answer: 24

Step-by-step explanation: 24

Simply multiply all of the fractions with the total number of marbles

48(2/3)(3/4)

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48 apples to 36 apples what is the percent? Which branch of government has its power checked by the power of Congress to approve or disapprove its membership? Drawing Conclusions from Text FeaturesTry itWhich conclusion can you draw about Kingsley basedon the illustration?O She was afraid,She shot the rapids.O She enjoyed adventure.O She did not want to take risks.The fearless Mary Kingsley shoots the Alemba Rapids onthe Ogoou. How is oxygen carried from the lungs to the tissues?a. It binds to a protein called hemoglobin in red blood cellsb. It is carried by cilia through the bronchiolesc. It leaves the alveoli and enters mucusd. It leaves the bronchi and enters the capillaries A fitness club charges a onetime $75 initiation fee plus $30 each month for a member to maintain her membership. Which equation below models the total cost, c, the club charges as a function of the number of months, m, that the individual has maintained her membership?1) c = 75m + 302) c = 1/30m + 753) c = 30m + 754) c = 900 + 30m PLEASE HELP!!!!!!!!!! The mediteranean diet encourages us toeat the following: PLEASE HELP DUE RIGHT NOW Determine a set of 3 numbers that are divisible by6 and 5 Martin has 5 cups of flour if he needs 1/4 cups of flour for one jumbo cookie how many jumbo cookies can he make?A. 20B. 5C. 4D. 24 What term is typically used to describe protections guaranteed under the 1st Amendment?A. civil rightsB.civil libertiesC. precedentsD.executive ordersE.amendments I need Help!! I need 6-8! If the expression 5+2x was evaluated for x=4 its value would be pls help!Rope A is 7/12 m long, and Rope B is 2/3 m long. What is the difference in their length? Pick the sentence where an apostrophe is used incorrectly. aMike Ross's car got broken into at the YMCA. bMr. Williams's guitar was found back stage after the concert. cThe dogs's bowls were turned over by the mean boy. dJoe's looking for a car or a truck. Solve the equation 6(z + 8.5) = 123 8. Why did the South develop so few railroads?a. They already had natural waterways to transport cropsb. They had many roads and canals alreadyc. The South had too many mountain rangesd. The women's suffrage movement voted against themPLZ HELP :)) PLS HELP! WILL GIVE BRAINLIEST!A test is worth 60 points. Multiple choice questions are worth 2 points, andshort-answer questions are worth 5 points. If the test has 15 questions, howmany multiple-choice questions are there?A. m+ s = 60B. m+ s = 15C. m:s= 15D. 2m + 5s = 15 If you know this please answer all fake answers will be reported thanks What is abacus. List it's features in points.