Answer:
20 + 14 = 34, there there are only 29 students, so 34 - 29 or 5 have both a dog and a cat
15 have only a dog
5 have a dog and a cat
9 have only a cat
Step-by-step explanation:
The probability that a student has a cat given that they do not have a dog is 3/5
What is probability ?Probability denotes the possibility of the outcome of any random event. The meaning of this term is to check the extent to which any event is likely to happen.
According to the question,
The number of student who do not have a dog is
25 - ( 8 + 2 ) = 15
9 have a cat { do not have a dog is a prerequisite }
So the probability that a student has a cat given that they do not have a dog = 9/15
= 3/5
To learn more about probability from here
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Evaluate 15 squared show work
Answer:
225
Step-by-step explanation:
15x15=225
There is a cool trick you can do. Lets take 28 and square it.
First you round the number up. 28 rounded is 30. You rounded up by 2 (30-28=2) so you minus 2 from 28.
You are left with these two numbers, 26 and 30. Add a zero to the 26.
You now have 260 and 3 (you remove 0 on the 30 since you added it to the 26)
Then you multiply by 3.
260x3=780
Then you add the square of the number you rounded up too, which is 2.
You are left with this equation.
(2^2)+780= 784
28x28=784.
This works for numbers below 100 and integers
The population of Garden City in 1995 was 2,400. In 200, the population was 4,000. Write a linear equation in slope-intercept form that represents this data.
Answer:
[tex]y = 320x +2080[/tex]
Step-by-step explanation:
Given
Population in 1995 = 2400
Population in 2000 = 4000
Required
Determine the linear equation
Let the years be represented with x.
In 1995, x = 1 i.e. the first year
In 2000, x = 6
Let y represents the population
When x = 1; y = 2400
When x = 6; y = 4000
First, we calculate the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{4000 - 2400}{6 - 1}[/tex]
[tex]m = \frac{1600}{5}[/tex]
[tex]m = 320[/tex]
Next, we calculate the line equation as follows:
[tex]y - y_1 = m(x - x_1)[/tex]
[tex]y - 2400 = 320(x - 1)[/tex]
[tex]y - 2400 = 320x - 320[/tex]
[tex]y = 320x - 320 + 2400[/tex]
[tex]y = 320x +2080[/tex]
Write the linear equation in slope-intercept form, 3x − y = 7
Pic below
....................
Answer:
b=2
Step-by-step explanation:
my uh head
but like u add 9/3 to -1 and get 2 so ya
hope this helps a bit <33
If 9y – 5 = 22, find the value of 2y.
Answer:
I want questions and answers
Step-by-step explanation:
Step-by-step explanation:
9y-5=22
9y=22+5
y=27
9
y=3
now,
2y=2×3=6
hope it helps.
In a class of 12 boys and 8 girls, two students need to be chosen for classroom jobs.
What is the probability that Mary gets selected?
Answer:
55 percent chance or 11/20 or 0.55
Step-by-step explanation
q = d / d+ n on a manufacturer's assembly line, d parts are found to be defective and n parts are nondefective. the formula above is used to calculate a quality-of-parts ratio. What is d expressed in terms of the other two variables?
a. n / 1 - q
b. nq / 1 - q
c. n / q-1
d. nq / q-1
Answer:
d. nq / q - 1
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesAlgebra I
FactoringStep-by-step explanation:
Step 1: Define
q = d / (d + n)
Step 2: Solve for d
Multiply (d + n) on both sides: q(d + n) = dDistribute q: dq + qn = dSubtract qn on both sides: dq = d - qnSubtract d on both sides: dq - d = -qnFactor GCF: d(q - 1) = -qnDivide (q - 1) on both sides: d = -qn / (q - 1)Rearrange: d = nq / -(q - 1)Distribute -1: d = nq / 1 - qLamar is considering two loans.
Loan A
Loan B
Principal
$4,500
$4,300
Interest rate
5%
6%
Time in years
3
3
Which loan will have the lowest total payback?
Step-by-step explanation:
know:
Loan A
Principal
$4500
Interest rate
5%
Time in years
3
If 100% => $4500
5% =>X
X = 5% × $4500 ÷ 100% = $225
Loan A = $4500 + $225 = $4725
Loan B
Principal
$4300
Interest
6%
Time in years
3
If 100% => $4300
6% =>X
X = 6% × $4300 ÷ 100% = $258
Loan B = $4300 + $258 = $4558
Loan B has the lowest total payback.
The Loan B has the lowest total payback than the Loan A.
How to calculate the Payback?WE can calculate the payback in both loan as;
Loan A;
Principal = $4500
Interest rate = 5%
Time in years = 3
If 100% => $4500
X = 5% × $4500 ÷ 100%
X = $225
Loan A = $4500 + $225 = $4725
Loan B;
Principal = $4300
Interest = 6%
Time in years = 3
If 100% => $4300
X = 6% × $4300 ÷ 100%
X= $258
Loan B = $4300 + $258 = $4558
Hence, the Loan B has the lowest total payback than the Loan A.
Learn more about this concept here;
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Find sin θ Right Triangle Trigonometry
Answer:
15/17
Step-by-step explanation:
15^2+8^2=c^2
c=hypotenuse. Sin is opposite side/hypotenuse
Answer:
B
Step-by-step explanation:
Use SOHCAHTOA
We are given the opposite side and the agacent side
Therefore we use TOA
tan(x)= 15/8
tan^-1(15/8)= 61.93
sin(61.93)= 15/17
Hope this Helped :)
In this figure m∠A=(2x-2)°, m∠C=(4x-6)°,and m∠DBC=(5x+4)° What is m∠C
SHOW YOUR WORK will give 100 points!!
Answer:
answer 500
Step-by-step explanation:
2x2-40x33 divided by 2 and boom answer 500
Anser:
m∠C=42
Step-by-step explanation:
(2x - 2) + (4x - 6) = (5x + 4)
(6x - 8) = (5x + 4)
-4 -4
6x - 12 = 5x
-5x -5x
1x = 12
So 4 * 12 - 6 = 42
m∠C=42
Given the function f(x) = 3|x - 2| + 6, for what values of x is f(x) = 18?
O x = -2, x = -8
O x = -2, x = -6
O x = -2, x = 6
O x = -2, x = 8
if anybody can answer this quickly; please do!
Answer:
The answer is D
Step-by-step explanation:
I would give an explanation but it would take to long. The original answer is 21, there is no other equation that equals 21.
put the numbers in order from least to greatest.
5 * 10^6
4000000
5 * 10^5
0.6 * 10^7
75 * 10^5
Combine the like terms to create an equivalent expression.
5 + 3t +4-t
Answer:
5+7t
Step-by-step explanation:
3t and 4t add together bc they are like terms
Answer:
9+2t
Step-by-step explanation:
5+4=9
3t-t=2t
help plz very very confused
Answer:
x=-2
Step-by-step explanation:
The sum of two numbers is 123 and the difference of the two numbers is 47. What are the two numbers?
Need help with this one will mark brainliest
Answer:
(1,-1)
Step-by-step explanation:
pls don't forget to mark brainliest, thanks! message me for any more questions :)
A decking company estimates how many gallons of stain each deck requires before starting construction. Apart from knowing the total area of each deck, which additional quantity will allow the decking company to make an accurate estimation
Answer:
Concept: Engineering Statistics
To make accurate estimations they need the total volume of the area.Hence they need the area coverage by the selected stain.Solution: Are covered by each gallon of stain This provides an accurate representation to a significant figure.Asafa runs 0.75 kilometers in 6 minutes. Jemaine runs 3,000 meters in half an hour. Who ran at a faster rate?
Answer:
Asafa ran at a faster rateStep-by-step explanation:
Asafa's speed:
0.75 km/ 6 min = 750 m/ 6 min = 125 m/minJemaine's speed:
3000 m / 30 min = 100 m/minAsafa ran at faster rate as 125 m/min > 100 m/min
do you know the answer
Answer:
The answer is 15.
Other:
Brainliest? Thanks!
what is 2 +2 pls in in kider grden pls hepl
Answer:
4
Step-by-step explanation:
(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧
Here is a very high quality picture
Answer:
4
Step-by-step explanation: If you had 2 crayons and your friend had 2 crayons and you added them together it would equal 4!
help please :)))))(
Answer:
6 hours :))))))
Step-by-step explanation:
Answer:
3 or 4 I think
Step-by-step explanation:
I think this because if u find the red candles unit rate it's 9 and 9×4 is 36 but the thing is the other one is 12 12×4 is 48 but then if u do 12×3 it's 36. The rest don't work so 3 or 4 hours. But if someone else has a different answers do not put mines because I have no clue but I think it's that because of that reason.
A local flower shop sells a dozen roses for $12.85. If there is an 8% sales tax, how much in TOTAL will you pay for the roses
Answer:
13.87
Step-by-step explanation:
These points are linear. Find the slope.
On a recent trip, Miles drove 58 miles the first hour,64 miles the second hour.and 62 miles the final hour. Estimate the average number of miles he drove each hour
Answer:
60
Step-by-step explanation:
all of those rounded to the nearest ten is 60
Need help plz don’t know what is the answer.
Answer:
A
Step-by-step explanation:
If you subtract 4 and add 16 you get 37
The square root of 36 is 6 and the square root of 49 is 7
so since 37 is closer to 36 it has to be than 7 and a little more than 6
Answer:
A. between 6.0 and 6.2
Step-by-step explanation:
solver using order of operations (PEMDAS)
[tex]\sqrt{25-4+16} \\\sqrt{21+16} \\\sqrt{37}\\6.08[/tex]
now that we have our answer we can see what numbers it fall between which are 6.0 and 6.2, giving us answer A
what is the slope of the line that is represented by the values in the table above?
Answer:
Answer:
Step-by-step explanation:
To get the slope of the line of the given table of values, all we need is just 2 coordinate pairs from the table. We can pick any two.
Let's use, (-1, 0), and (0, 6).
slope (m) =6
Step-by-step explanation:
Answer:
whats the answer dang
Step-by-step explanation:
whats 1 plus 1 I WILL GIVE BRAINLEST
Answer:2
Step-by-step explanation:
When Margie visited the beach at Key West, she collected 50 seashells. She had 15
smooth shells and 35 shells with ridges. What percent of her shells had ridges?
35
30
70
65
Answer:
70
Step-by-step explanation:
If the interest of sum of money is 6 yrs in 3/8 of the principal . what is the rate of interest?
Given that,
The interest of sum of money is 6 yrs in 3/8 of the principal.
To find,
The rate of interest.
Solution,
Let P is the principal. It means interest will be :
I=3/8 P
The formula for the interest is given by :
[tex]I=\dfrac{PRT}{100}\\\\\dfrac{3}{8}P=\dfrac{PR\times 6}{100}\\\\\dfrac{3}{8}=\dfrac{6R}{100}\\\\R=\dfrac{300}{8\times 6}\\\\=6.25\%[/tex]
Hence, the rate of interest is 6.25%.