Answer:
[tex]x=1[/tex]
Step-by-step explanation:
[tex]23x+5=13x+15[/tex][tex]23x+5-13x=15[/tex][tex]23x-13x=15-5[/tex] ← collect like terms[tex]10x=15-5[/tex][tex]10x=10[/tex] ← Divide both sides by 10[tex]x=1[/tex]≿━━━━༺❀༻━━━━≾
hope it helps...
have a great day!!
There are 3 black shoes and 9 red shoes. The ratio is 3:9. What fraction of shoes are black?
Answer:
3/12 or simplified is 1/4
Step-by-step explanation:
I think its right! sorry if im wrong
Answer: 3/12
Step-by-step explanation:
Directions: Solve for the surface area of the following figures using the formula.
no links pls. i really need it T-T
Answer:
3^3 x 3.14
9 x 3.14 = 28.26
28.26 x 2 = 56.52
2 x 3.14 x 3 = 18.84
18.84 x 10 = 188.4
Now lets add all given areas:
56.52 + 188.4 = 244.92 m^2 for question 1
4 x 3.14 x 12^2
4 x 3.14 x 144 = 1,808.64 cm^2 is your answer for question 2
14^2 x 3.14
196 x 3.14 = 615.44
3.14 x 14 x 33 = 1450.68
1450.68 + 615.44 = 2,066.12 cm^2 is your answer for question 3 I think
WILL MARK BRAINLIEST A granddaughter's age in months is equal to her grandmother's age in years. The sum of the granddaughter's age in years and the grandmother's age in years is 65. Find the grandmother's age in years.
Answer:
m = 60 years
Step-by-step explanation:
granddaughter's age in months is equal to her grandmother's age in years
d = m
The sum of the granddaughter's age in years and the grandmother's age in years is 65
d/12 + m = 65
Substitute
m/12 + m = 65
(13/12)m = 65
multiply both sides by 12/13
m = 65 * 12/13
m = 60 years
Answer:
60 years
Step-by-step explanation:
Let the age of grandmother be x years
So, age of granddaughter = x months = x/12 years
According to the question:
The sum of the granddaughter's age in years and the grandmother's age in years is 65.
[tex]x + \frac{x}{12} = 65 \\ \\ \frac{12x + x}{12} = 65 \\ \\ \frac{13x}{12} = 65 \\ \\ x = 65 \times \frac{12}{13} \\ \\ x = 60 \\ [/tex]
Thus, the age of grandmother is 60 years.
It is known that ARST - AWXY. If RS =18, ST = 25, and TR=11 then which of the following is closest
to the ratio of XY to WX?
(1) 0.44
(3) 2.27
(2) 1.39
(4) 0.72
Answer:
[tex]XY : WX = 1.39[/tex]
Step-by-step explanation:
Given
[tex]RS = 18; ST = 25; TR = 11[/tex]
Required
Which is closest to [tex]XY : WX[/tex]
From the question, we understand that: [tex]\triangle RST[/tex] and [tex]\triangle WXY[/tex] are similar.
This means that, the following sides are similar:
[tex]RS \to WX[/tex]
[tex]ST \to XY[/tex]
[tex]TR \to YW[/tex]
So:
[tex]XY : WX = ST : RS[/tex]
This gives:
[tex]XY : WX = 25 : 18[/tex]
Express as fraction
[tex]XY : WX = \frac{25 }{ 18}[/tex]
[tex]XY : WX = 1.39[/tex] --- approximated
A particle moves along the x-axis with the given acceleration function a(t) = 8t - 6, initial position s(0) = 2, and initial velocity v(0). Find the position function.
Answer:
[tex]s(t) = \frac{4t^3}{3} - 3t^2 + v(0)t + 2[/tex]
Step-by-step explanation:
Relation between acceleration, velocity and position:
The velocity function is the integral of the acceleration function.
The position function is the integral of the velocity function.
Acceleration:
As given by the problem, the acceleration function is:
[tex]a(t) = 8t - 6[/tex]
Velocity:
[tex]v(t) = \int a(t) dt = \int (8t - 6) dt = \frac{8t^2}{2} - 6t + K = 4t^2 - 6t + K[/tex]
In which the constant of integration K is the initial velocity, which is v(0). So
[tex]v(t) = 4t^2 - 6t + v(0)[/tex]
Position:
[tex]s(t) = \int v(t) dt = \int (4t^2 - 6t + v(0)) dt = \frac{4t^3}{3} - \frac{6t^2}{2} + v(0)t + K = \frac{4t^3}{3} - 3t^2 + v(0)t + K[/tex]
The initial position is s(0) = 2. So
[tex]s(t) = \frac{4t^3}{3} - 3t^2 + v(0)t + 2[/tex]
If it is known that point (-3,1/5) belongs on graph y=k/x^2. Find the value of k.
Answer:
k = 9/5
Step-by-step explanation:
In y=k/x^2 replace x with (-3) and y with (1/5); then calculate k:
k
(1/5) = ----------
(-3)^2
1 k
or ------- = ----------
5 9
Solving for k through cross-multiplication, we get
5k = 9, or k = 9/5
The value of k is,
⇒ k = 9/5
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
it is known that point (-3, 1/5) belongs on graph y=k/x²
Hence, The given point satisfy the equation as;
⇒ y = k / x²
⇒ 1/5 = k / (- 3)²
⇒ 1/5 = k / 9
⇒ k = 9/5
Thus, The value of k is,
⇒ k = 9/5
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ3
PLEASE HELP AND DO NOT SEND A LINK IF YOU DO YOU WILL BE REPORTED
I need help with these problems I'm hella confused about them, I'm not sure if what I put was correct please help me and show explanations
Answer:
Answer 3[tex] \to 5 \times \dfrac{3}{4} \\ \\ \to \dfrac{5 \times 3}{4} \\ \\ \to \dfrac{15}{4} \\ \\ \to \pmb{ 3 \dfrac{3}{4}}[/tex]
Answer 4 :[tex] \to 2 \times 1 \dfrac{1}{2} \\ \\ \to 2 \times\dfrac{3}{2} \\ \\ \to \dfrac{2 \times 3}{2} \\ \\ \to \dfrac{6}{2} \\ \\ \to \pmb{3}[/tex]
What is the slope of the line passing through the points (1 5/7) and (2 2/7)
Answer:
Step-by-step explanation:
[tex]\frac{2}{7}-\frac{5}{7} = \frac{-3}{7} \\2 - 1 = 1\\\\Hence,\\(-3/7) / 1 = -3/7\\\\Hence, slope: -3/7[/tex]
Feel free to mark as brainliest :D
If right I’ll mark brainiest if u have questions put it in the comments
Answer:
6
Step-by-step explanation:
The interquartile range is calculated by subtracting the first quartile from the third quartile. Box and whisker plots make it pretty easy to find the quartiles. The first quartile is the point where the box starts, and the third is where the box ends. The second is the median/line in the middle of the box.
So for that first box plot on the top, the first quartile is 7, because that's where the box begins. The third quartile is 22 because it's where the box ends.
For the second one, the first quartile is 8 and the third is 17.
To find the interquartile range of each, subtract the first quartile from the third. 22-7 = 15 and 17-8 = 9.
Now to find the difference in the interquartile ranges, subtract 9 from 15. You get 6, so that is the answer :)
out of 20 consecuative whole number two are chsen at random.then the probability that ther?
Answer:
2/20
Step-by-step explanation:
since,there are 20 whole number and if u put 2 random number the,
probability(P)=favorable outcome/possible outcome
so p=2/20
Thank You
what is the slope of this graph
Answer:
1
Step-by-step explanation:
Trust
For their unit on the legislative branch, Mr. Escue's government class will have 1 test and 5 homework assignments to complete.
If the test is worth 100 points and each homework assignment is work 20% of the test, how many points may be earned during this unit?
A.
125 points
B.
120 points
C.
300 points
D.
200 points
Find the volume of a cone with a base diameter of 10cm and a height of 12cm.
Answer:
The Volume of Cone is V=1/3hπr².
V = 1/3 × h × π × r²
V = 1/3 × 12 × 3.14 × 5cm
V = 1/3 × 12 × 15.7
V = 4 × 15.7
V = 62.8cm³ ANS
→ we need to find the radius so r = d/2 = 10/2 = 5cm
30 POINTS, HELP!!
A sporting goods store sells two types of bicycles, in two colors. The table shows its sales over the last year.
Are buying a road bike and buying a silver bike independent events?
A. No, because P(road bike) = 0.625 and P(road bike│silver) = 0.375.
B. No, because P(road bike) = 0.625 and P(road bike│silver) = 0.625.
C. Yes, because P(road bike) = 0.375 and P(road bike│silver) = 0.625.
D. Yes, because P(road bike) = 0.625 and P(road bike│silver) = 0.625.
Answer:
Answer D
Step-by-step explanation:
120 + 81+ 39=240 silver bikes
80+54+26= 160 black bikes
Total 200 + 135 + 65= 400
240+ 160=400
Answer:
yes, because P(road bike) = 0.625 and P(road bike | silver) = 0.625
Step-by-step explanation:
The graph of a linear equation is shown. y ОN HNWO -7-6-5-4-3-2-11+1234 5 6 7 -27 -3 가 Place values in the table to show three ordered pairs that are each part of the solution set of the linear equation. 2 P. y – 4 2 -6 -3 - 6
Answer:
n
Step-by-step explanation:
s
Someone Please Help!!!
Answer:
Blue fabric (triangles) = 27 m²
Green fabric (square) = 9 m²
Step-by-step explanation:
✔️Blue fabric (triangles) = 4(area of triangular face)
= 4(½*b*h)
b = 3 m
h = 4.5 m
= 4(½*3*4.5)
= 27 m²
✔️Green fabric (square) = area of the square base
= s²
s = 3
Area = 3²
= 9 m²
PLS HELP ME MATH!
SORRY IF I ALREADY ASKED THIS
Point in original figure: (-1,5)
Point in final figure: (7,2)
Take the bold point on the figure and drag it 8 to the right.
Once you arrive at this point, drag it 7 up.
Hope this helps.
A recent survey showed that 23.3 million adults have cut the cord on cable TV services, a 30% increase fron the previous year. If this trend continues, how many millions if adults can be expected to cut the cord next year?
Answer:
30,290,000 people
Step-by-step explanation:
The question is asking if the trend continues from the PREVIOUS year, so we would find the 30% of 23,300,000
23,300,000/100 = 233,000 = 1%
233,000 x 30 = 6,990,000
23,300,000 = 6,990,000 = 30,290,000
what is 3 x 3 x 9 x 9 x 81 x 81 x 6561 x 6561
Answer:
205891132094649
What are the solutions to the quadratic function?
Please help
Answer:
x={-3, 2}
Step-by-step explanation:
Solution to quadratic function are places where function crosses x axis, so where f(x)=0
Answer:
Step-by-step explanation:
-4 and 2
There were 35 children and 10 adults at a cookout. What is the ratio of adults to children at the cookout?
Answer:
2:7
Step-by-step explanation:
10:35 can also be written as 2:7
Thenks and mark me brainliest :))
jennifer is trying to save up for emergency fund of 3000. which saving strategy would likely be most effective in helping her meet her goal
Answer:
Save money by a job
Step-by-step explanation:
She can help peoplw, oe get a small job and save up :)
A consulting firm submitted a bid for a large research project. The firm's management initially felt they had a chance of getting the project. However, the agency to which the bid was submitted subsequently requested additional information on the bid. Past experience indicates that for of the successful bids and of the unsuccessful bids the agency requested additional information. a. What is the prior probability of the bid being successful (that is, prior to the request for additional information) (to decimal)? b. What is the conditional probability of a request for additional information given that the bid will ultimately be successful (to decimals)? c. Compute the posterior probability that the bid will be successful given a request for additional information (to decimals).
Answer:
Step-by-step explanation:
Dear student, the missing data in the given information includes that:
The past experience showcases that for 75% successful bids & 40% unsuccessful bids, additional information is being requested by the agency.
∴
For a bid to be successful, the chance is half
Thus, the prior probability P(successful) is;
P(successful) = [tex]\dfrac{50}{50+50}[/tex]
P(successful) = 0.5
The conditional probability is:
[tex]P(request/successful)= \dfrac{P(request \& \ successful) }{P(successful)}[/tex]
[tex]P(request/successful)= 0.75[/tex]
To compute the posterity probability, we use the Naive Bayes Theorem:
So,
Let S = successful, Us = Unsuccessful; R = request:
Then;
[tex]P(S/R) = \dfrac{P(R/S) *P(S)}{[P(R/s)* P(S) +P(R/Us) *P(Us)]}[/tex]
[tex]P(S/R) = \dfrac{0.75*0.5}{0.75* 0.5 +0.40 *0.5]}[/tex]
[tex]P(S/R) = \dfrac{0.375}{0.375 +0.20} \\ \\ P(S/R) = \dfrac{0.375}{0.575}[/tex]
P(S/R) = 0.65
Below is how many times each of the eight cows on frannies farm mooed yesterday
Answer: 8 cows mooed
Step-by-step explanation:
the auto parts department of an automotive dealership sends out a mean of 66 special orders daily. what is the probability that, for any day, the number of special orders sent out will be no more than 33
Answer:
0% probability that, for any day, the number of special orders sent out will be no more than 33
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 66 special orders daily
This means that [tex]\mu = 66[/tex]. We have the mean during a time interval, which means that the number of special orders follow a Poisson distribution, which has [tex]\sigma = \sqrt{\mu} = \sqrt{66}[/tex]
What is the probability that, for any day, the number of special orders sent out will be no more than 33?
Since the Poisson distribution, which is discrete, is approximated to the normal(which is continuous), we have to use continuity correction, and thus, this probability is P(X < 33 - 0.5) = P(X < 32.5), which is the p-value of Z when X = 32.5.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{32.5 - 66}{\sqrt{66}}[/tex]
[tex]Z = -4.12[/tex]
[tex]Z = -4.12[/tex] has a p-value of 0.
0% probability that, for any day, the number of special orders sent out will be no more than 33
solve for x. label the sides adj, opp, and/or hyp based on the part you see. show work round to the nearest 10th
Answer:
[tex]x=37.4[/tex]
Step-by-step explanation:
In an right triangle, the cosine of an angle is equal to its adjacent side divided by the hypotenuse (a/h).
Therefore, we have the following equation:
[tex]\cos 68^{\circ}=\frac{14}{x},\\x=\frac{14}{\cos 68^{\circ}}\approx\boxed{37.4}[/tex]
brainliest to right person
Answer:
4 ÷ 6/9 is also equal to 4 x 9/6. This is because when you divide by a fraction, you change the division sign to multiply and reverse the numerator and the denominator of the fraction. For example, if x/y was a fraction, it would become y/x. THIS IS ONLY DURING DIVISION!
So, we now that 4 ÷ 6/9 is equal to 4 x 9/6. 4 x 9/6 = (4x9)/6 = 36/6 = 6.
What is the simple interest on 500 for 5 years at the rate of 5% per annum
Answer:
125
Step-by-step explanation:
Formula Simple interest:
P x r x t
Question 33 of 42 Which of the following terms best describes a comparison of two numbers? O A. Ratio B. Inverse variation C. Proportion O D. Rational expression
Answer:
my best guess is A. ratio
Can anyone help rewrite as equivalent rational expression with LCD
Answer:
I can help if you give me the expression. Otherwise, you can put it into a math calculator that provides you with a step-by-step explanation. Such as Symbolab