Answer:
30% not likely
Step-by-step explanation:
We have 10 marbles
The probability must equal 100%
10% red
60% yellow
----------------
70 %
That leaves 30% for orange
Orange is 30%
This is less than 50% so it is not likely to occur
Answer:
30%
not likely
Step-by-step explanation:
P(orange) = 100 - 10 - 60
= 30%
Less likely or not likely
An account earns simple interest. $300 at 4% for 3 years, what is the interest earned
Answer:
$36
Step-by-step explanation:
You are going to want to use the simple interest formula for this. The one below is modified for solving the interest earned.
[tex]I = Prt[/tex]
I = interest amount
P = principal amount
r = interest rate (decimal form)
t = time (years)
First, change 4% into a decimal:
4% -> [tex]\frac{4}{100}[/tex] -> 0.04
Now, plug the values into the equation:
[tex]I=300(0.04)(3)[/tex]
[tex]I=36[/tex]
The interest earned is $36
In Greg's that, he has $1$ yellow, $2$ red, and $3$ green tokens. One red token is equivalent to $7$ yellow tokens. One yellow token is equivalent to $3$ green tokens. Greg converts all of his tokens to green tokens. How many green tokens does he have?
Answer:
$48 green tokens
Step-by-step explanation:
please check the attached file for explanation
Answer:
48
Step-by-step explanation:
In a probability experiment, Eric flipped a coin 45 times. The coin landed on heads 30 times. What is the ratio of heads to tails in this experiment?
Answer:
30:15 (simplified is 2:1)
Step-by-step explanation:
Out of the 45 times Eric flipped a coin, 30 of them landed on heads. Tails is the the only other probable occurance, so since we know that there are 15 trials left, this means that the coin landed on tails 15 times. This would give a heads to tails ratio of 30:15, but the simplified ratio would be 2:1, because that's the smallest it can be divided evenly.
45-30=15
30:15=2:1
Scientist are studying a bacteria sample. The function f(x)=245(1.12)^x gives the number of bacteria in the sample at the end of x days. Which statement is the best interpretation of one of the values of the function?
Answer:
The best interpretation of one of the values of the function is that the rate increases by 12% each day.
Step-by-step explanation:
Given:
F(x)=245(1.12)^x
To Find:
statement is the best interpretation of one of the values of the function
Solution:
Depending upon the values given the statement can be developed
As the function is itself the exponential growth structure ,
In this the statement ,Growth can be significantly depends on all factor
Such as time period initial value and rate.
But here the formula is simplified as ,
[tex]P=A(1+r)^t[/tex]
Here A= initial value r=rate and t =time period
Here A=245 and 1+r=1.12
i.e r=0.12 i.e 12%
Hence the rate give the best interpretation and more information about the function and scenario.
The function f(x)=245(1.12)^x models the exponential growth of bacteria in a sample over x days, with the base 245 being the initial number and 1.12 representing the daily growth rate.
Explanation:The function f(x)=245(1.12)^x describes the exponential growth of bacteria, where the base number (245) represents the initial amount of bacteria and 1.12 indicates the growth rate per day.
For example, if we want to determine the number of bacteria at the end of the first day (x=1), we substitute 1 into the function to get f(1)=245(1.12)^1, which would give us the total number of bacteria at the end of day one.
The exponent x stands for the number of days and shows how the population grows at an increasing rate over time, which is a signature characteristic of an exponential function in a context like bacterial growth.
I need help asap :):);)
Answer: The third option.
Step-by-step explanation:
This is an equation because it has an equals sign that can be solved for, making it an equation.
Answer:
x + 3 = 12
Step-by-step explanation:
This is an equation because it contains an equal sign, if it does not contain an equal sign then it is an expression.
Which statement is correct regarding the measurements of the parallelogram?
The base is 6 and the height is 3. so the area is 6(3) - 18 square units.
The base is 8 and the height is 3, so the area is a(3) - 24 square units.
The base is 8 and the height is 4, so the area is 3(4) - 32 square units.
The base is 8 and the height is 6, so the area is a = 48 square units.
Answer:
The first one is correct
Step-by-step explanation:
You can multiply the base and perpendicular height to find the area.
The restaurant served 220 sandwiches, 120tacos, and 160 salads for lunch. What is the ratio of salads to total number of lunches sold? * 5 points 5 to 11 8 to 25 6 to 8
Answer:
8 to 25
Step-by-step explanation:
The total number of lunches sold i
220+120+160 =500
We want the ratio of salads to total lunches
salads: lunches
160: 500
Divide each side by 20
160/20 : 500/20
8:25
Let x denote the courtship time for a randomly selected female–male pair of mating scorpion flies (time from the beginning of interaction until mating). suppose the mean value of x is 120 min and the standard deviation of x is 110 min (suggested by data in the article
Complete Question:
a) Is it plausible that X is normally distributed?
b) For a random sample of 50 such pairs, what is the (approximate) probability that the sample mean courtship time is between 100 min and 125 min?
Answer:
a) It is plausible that X is normally distributed
b) probability that the sample mean courtship time is between 100 min and 125 min is 0.5269
Step-by-step explanation:
a)X denotes the courtship time for the scorpion flies which indicates that is a real - valued random variable, and since normal distribution is a continuous probability distribution for a real valued random variable, it is plausible that X is normally distributed.
b) Probability that the sample mean courtship time is between 100 min and 125 min
[tex]\mu = 120\\n = 50[/tex]
[tex]P(x_{1} < \bar{X} < x_{2} ) = P(z_{2} < \frac{x_{2}- \mu }{SD} ) - P(z_{1} < \frac{x_{2}- \mu }{SD})[/tex]
[tex]SD = \sqrt{\frac{\sigma^{2} }{n} } \\SD = \sqrt{\frac{110^{2} }{50} } \\SD = 15.56[/tex]
[tex]P(100 < \bar{X} <125 ) = P(z_{2} < \frac{125- 120 }{15.56} ) - P(z_{1} < \frac{100- 120 }{15.56})\\P(100 < \bar{X} <125 ) = P(z_{2} < 0.32 ) - P(z_{1} < -1.29)[/tex]
From the probability distribution table:
[tex]P(z_{2} < 0.32 ) = 0.6255\\ P(z_{1} < -1.29) = 0.0986[/tex]
[tex]P(100 < \bar{X} <125 ) = 0.6255 - 0.0986\\P(100 < \bar{X} <125 ) =0.5269[/tex]
PROBLEM 1
Evaluate the expression 9 – z when z = 4.
What’s the answer
Answer:
[tex](9 - 4) \\ ( {3}^{2} - {2}^{2}) \\ (3 - 2)(3 + 2) \\ 1 \times 5 = 5 [/tex]
hope this helps you.
Mark knows that his yard is 214 times as long as it is wide. Which equation shows the length, in feet, of the fence that goes all the way around the yard if Mark measures the width as w feet?
Answer:
Length in feet is equal to [tex]\frac{2P}{6.5}[/tex], where P is the perimeter
Step-by-step explanation:
Let the width (W) of the yard be "X"
[tex]W = w[/tex]
Then the length(L) of the yard will be
[tex]2\frac{1}{4} * w[/tex]
[tex]L = \frac{9}{4} *w[/tex]
The perimeter of the yard will be equal to the sum of twice the length and width of the yard
Thus,
[tex]P = 2 W + 2L\\[/tex]
Substituting the given values in above equation, we get -
[tex]P = 2 w + 2 (\frac{9}{4})w\\P = 2w + 4.5 w\\P = 6.5w[/tex]
Thus, width in terms of perimeter is equal to
[tex]w = \frac{P}{6.5}[/tex]
Length in feet is equal to [tex]\frac{2P}{6.5}[/tex]
Desmond deposits $50 into a savings account every month at an annual interest rate of
4.7%, compounded monthly.
a. How much will his account contain after 10 years assuming he makes not withdrawals?
b. What is the rate of change in the value of Desmond’s account after 10 years?
Given:
Desmond deposits $ 50 monthly.
Yearly he deposits = $50×12 = $ 600
Rate of interest compounded monthly = 4.7%
To find the amount he will receive after 10 years and the rate of change the value of his account after 10 years.
Formula
[tex]A = P(1+\frac{r}{(n)(100)} )^{nt}[/tex]
where,
A be the final amount
P be the principal
r be the rate of interest
t be the time and
n be the number of times the interest is compounded.
Now,
Taking,
P = 600, r = 4.7, n = 12, t = 10 we get,
[tex]A = 600(1+\frac{4.7}{(12)(100)}) ^{(12)(10)}[/tex]
or, [tex]A = 600(1.0039)^{120}[/tex]
or, [tex]A = 959.1[/tex]
Now,
At starting he has $ 600
At the end of 10 years he will be having $ 959.1
So,
The amount of change in his account = $ (959.1-600) = $ 359.1
Therefore the rate of change = [tex](\frac{359.1}{600} )(100) %[/tex]
= 59.85%
Hence,
a) His account will contain $ 959.1 after 10 years.
b) The rate of change in his account is 59.85% after 10 years.
Identify the sampling method as simple random sampling, systematic sampling, convenience sampling, or stratified sampling. A computer randomly selects 500 names from a list of all registered voters. Those selected are surveyed to predict who will win the election for Mayor.
Choose the correct sampling technique below.
A. Systematic sampling
B. Convenience sampling
C. Simple random sampling
D. Stratified sampling
Answer: C.
Simple random sampling
Step-by-step explanation:
A simple random sample in statistics, is a subset of individuals chosen from a larger set. Each individual is chosen randomly and entirely by chance, such that each individual has the same probability for the entire larger set.
Answer:
C
Step-by-step explanation:
The computer randomly selects 500 names without any bias, Thus, it is simple random sampling because each name has equal chance of getting selected.
A bucket contains five green tennis balls, two yellow tennis balls, six red tennis balls, and eight blue tennis balls. Tony removes for tennis balls, without replacement from the bucket shown. What is the probability that Tony removes one yellow, one green ,one blue,and then one more blue tennis ball?
Answer:
The probability that Tony removes one yellow, one green ,one blue,and then one more blue tennis ball is 0.0039.
Step-by-step explanation:
We are given that a bucket contains five green tennis balls, two yellow tennis balls, six red tennis balls, and eight blue tennis balls.
As we know that, Probability of an event = [tex]\frac{\text{Favorable number of outcomes}}{\text{Total number of outcomes}}[/tex]
Number of green tennis balls = 5
Number of yellow tennis balls = 2
Number of red tennis balls = 6
Number of blue tennis balls = 8
Total number of tennis balls = 5 + 2 + 6 + 8 = 21
{Now it should be notes that Tony removes for tennis balls, without replacement from the bucket means that every time the total number of remaining balls available for selecting will be one less}.
Now, Probability that Tony removes one yellow = [tex]\frac{2}{21}[/tex]
Probability that Tony removes one green = [tex]\frac{5}{20}[/tex]
Probability that Tony removes one blue = [tex]\frac{8}{19}[/tex]
Probability that Tony removes one blue again = [tex]\frac{7}{18}[/tex]
SO, final probability is = [tex]\frac{2}{21} \times \frac{5}{20} \times \frac{8}{19} \times \frac{7}{18}[/tex]
= [tex]\frac{2}{513}[/tex]
= 0.0039
Simplify:
0.007 km : 0.021 km : 14 m
Answer:
The answer is 1 : 3 : 2
Step-by-step explanation:
First, you have to make them into same unit by converting it into km or m :
1 km = 1000 m
0.007 km = 7 m
0.021 km = 21 m
7 : 21 : 14
OR
14 m = 0.014 km
Then you can simplify it by 7 :
m,
7 : 21 : 14
= 1 : 3 : 2
OR
km,
0.007 : 0.021 : 0.014
= 0.001 : 0.003 : 0.002
= 1 : 3 : 2
(take note: in ratio, it is better to put it in whole number form rather than decimal form)
What is the formula for pie
Answer:
[tex]\pi \: = \frac{22}{7} \: \: \: \: or \: \: \: \: \: \: 3.14 \\ \\ [/tex]
What percent of 300 is 51
Answer:
17
Step-by-step explanation:
300:51*100 =
(300*100):51 =
30000:51 = 588.24
Now we have: 300 is what percent of 51 = 588.24
Question: 300 is what percent of 51?
Percentage solution with steps:
Step 1: We make the assumption that 51 is 100% since it is our output value.
Step 2: We next represent the value we seek with $x$x.
Step 3: From step 1, it follows that $100\%=51$100%=51.
Step 4: In the same vein, $x\%=300$x%=300.
Step 5: This gives us a pair of simple equations:
$100\%=51(1)$100%=51(1).
$x\%=300(2)$x%=300(2).
Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have
$\frac{100\%}{x\%}=\frac{51}{300}$
100%
x%=
51
300
Step 7: Taking the inverse (or reciprocal) of both sides yields
$\frac{x\%}{100\%}=\frac{300}{51}$
x%
100%=
300
51
$\Rightarrow x=588.24\%$⇒x=588.24%
Therefore, 17% of 300 is 51
Answer:
Answer 17%
Step-by-step explanation:
Solution for 300 is what percent of 51:
300:51*100 =
(300*100):51 =
30000:51 = 588.24
588.24 as a percentage is 17%
I hoped this helped and remember to stay safe!!!Can you please help me this is 6th grade stuff
Answer:
116
Step-by-step explanation: You would have to split the figure into a square and a triangle as you can see in the picture. You then find the area of each figure.
Area of Square : 8 * 8 = 64
Area of Triangle : 8 * 13 /2 = 52
Then, you add the areas of both figures together to get 116.
The local animal shelter has 120 dogs and cats. The ratio of dogs to cats is 3 to 7. How many dogs are in the shelter?
Answer:
There are 36 dogs in the shelter.
Step-by-step explanation:
(Draw a model)
(3 boxes for dogs and 7 boxes for cats)
10 units = 120
1 unit = 120÷10
= 12
3 units = 12×3
= 36
(I hope you understand the question. A gentle reminder, always draw the model according to the ratio. From there you will understand.)
She paid £40 altogether. She paid £3.25 for each pineapple, £2.75 for each melon 50p for each grapefruit. She bought the same number of pineapple as she did melon. How many of each did mrs Gillespie buy
Answer:
6 pineapple, 6 melons, 8 grapefruits
Step-by-step explanation:
3.25P + 2.75M + 0.5G = 40
P = M
6M + 0.5G = 40
Let M = 6
6(6) + 0.5G = 40
0.5G = 4
G = 8
P = 6
M = 6
G = 8
3[tex]\sqrt{16}[/tex] + [tex]\sqrt{-9}[/tex]
Simplify the expression. Write your answer as a complex number.
Answer:
Step-by-step explanation:
hello :
let: A = 3√16+√-9
16=4² and -9 = 9i² =(3i)² .... ( i² = -1)
√16 =√4² = 4 and √-9 = √9i²= √(3i)² ± 3i
A= 12 ± 3i
Tariq designed the pool shown . The owner of the pool has one square to use . Find the area of the space that needs to be covered. (The four corners are squares.)
Answer:
Heres the anwser my man 128
Step-by-step explanation:
hope you got it right.
Mekala has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Mekala's Jumble has 4 44 techno songs, 2 22 country songs, and 3 33 jazz songs on it. Mekala plans to listen to 270 270270 songs.
Answer:Close to 60 country songs but probably not exactly 60 country songs.
Step-by-step explanation:
Mekala player Jumble has 4 techno songs, 2 country songs, and 3 jazz songs on it.
Represent this songs in ratio format
Ratio of techno songs,to country songs,to jazz songs= 4: 2 : 3
Total number of songs is unknowns ,let it be represented by x
total number of songs is therefore 4 x, 2 x, and 3 x.
Total number of songs that Mekala plans to Listen = 2 70
Then , 4 x + 2 x + 3 x= 270
9 x = 270
Dividing both sides by 9, we get
x = 30
So, Number of techno songs = 4 × 30= 120
Number of country songs = 2 × 30= 60
Number of jazz songs = 3 × 30= 90
Answer:
Close to 60 country songs but probably not exactly 60 country songs
Step-by-step explanation:
4x3 + x2 - 8x - 2 by grouping
what are 3 equivalent ratios to 1/9?
Answer:
1/9= 2/18=3/27=4/36
Step-by-step explanation:
To find equivalent ratios to 1/9, both the numerator and the denominator are multiplied by the same number. Thus, 2/18, 3/27, and 4/36 are all equivalent ratios to 1/9.
Explanation:Ratios are equivalent if they represent the same relationship between numbers. To find equivalent ratios for 1/9, you need to multiply both the numerator and the denominator by the same number. Here are three examples:
By multiplying 1 and 9 by 2, we get 2/18.By multiplying 1 and 9 by 3, we get 3/27.By multiplying 1 and 9 by 4, we get 4/36.So, 2/18, 3/27, and 4/36 are ratios equivalent to 1/9.
Learn more about Equivalent Ratioshttps://brainly.com/question/4916861?referrer=searchResults
#SPJ2
4/3 x 3.14 x 13^3
What is the answer
Answer:
(4/3) x 3.14 x (13^3) = 9198.1066666... (repeating decimal)
Step-by-step explanation:
The result of multiplication is: 4/3 x 3.14 x 13³ =9198.11.
Here, we have,
given that,
4/3 x 3.14 x 13³
now, we have to multiply the terms.
so, we get,
4/3 x 3.14 x 13³
=4/3 x 3.14 x 13 x 13 x 13
=4/3 x 3.14 x 2197
=4/3 x 6898.58
=27594.32 /3
=9198.11
Hence, The result of multiplication is: 4/3 x 3.14 x 13³ =9198.11.
To learn more on multiplication click:
brainly.com/question/5992872
#SPJ6
Stacy started with $40 in a savings account that earns 5% annually. How much interest will she get in one year?
Answer:
$2
Step-by-step explanation:
She earns 5% of $40 each year. To find how much she makes in 1 year, multiply 5% and 40
40*5%
Convert 5% to a decimal by dividing by 100
5%/100=0.05
40*0.05=2
So, in one year, the account earns $2 in interest
If an exercise routine requires 24 crunches for every 16 squats, how many squats would need to be done for every 78 crunches? Group of answer choices
Answer:
The correct answer is 52 squats.
Step-by-step explanation:
An exercise routine requires 24 crunches for every 16 squats.
Therefore the routine would require 1 crunch for every [tex]\frac{16}{24}[/tex] squats.
And by the use of unitary method, the routine would require 78 crunches for every [tex]\frac{16}{24}[/tex] × 78 squats = 52 squats.
Thus for every 78 crunches attempted, the exercise routine would requires 52 squats to be done.
Line a: (–1, 2), (1, 8)
Line b: (–3, –4), (2, 11)
ma = 8 − 2
1 − (− 1)
= 6
2
= 3
mb = 11 − (−4)
2 − (− 3)
= 15
5
= 3
Slope of the line through (1, 8) and (2, 11)
m = 11 − 8
2 − 1
= 3
1
= 3
How many points of intersection are there between line a and line b?
zero
one
two
infinitely many
Answer:
its D the last one i just took the assignment
Step-by-step explanation:
Answer:
The answer is D.
Step-by-step explanation:
I took the assignment.
A triangle has a perimeter of 10.2 kilometers. Two of the sides measure 3.4 kilometers and 3.4 kilometers. What is the length of the third side?
Answer:
3.4
Step-by-step explanation:
3.4+3.4= 6.8
10.2-6.8=3.4
Factor x^2 +11xy+30y^2
Answer:
(x+5y)(x+6y)
Step-by-step explanation: