The number of books bought by the school is 92.
Here it is given that the school spend $925 to buy new books for the library.
The cost of each book is $9.95
So we have to find the number of books that can be bought.
By dividing the total money spent by the cost of each book we get the number of books bought.
Let n be the number of books bought.
n × 9.95 = Total money spend on the books
As we know the total money spend on the books is $925.
So we get:
925 = n × 9.95
n = 925/ 9.95
= 92
Therefore the total number of books bought is 92.
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a group contains n men and n women. identify the steps used to find the number of ways to arrange n men and n women in a row if the men and women alternate?
With the help of factorisation we can conclude our answer.
What is factorisation?The breaking or decomposition of an entity (such as a number, a matrix, or a polynomial) into the product of another entity, or factors, whose multiplication results in the original number or matrix is known as factorization or factoring in mathematics.A polynomial or integer is simply resolved into components that, when multiplied together, produce the original or starting polynomial or integer. The factorization method allows us to simplify any algebraic or quadratic equation by representing the equations as the product of factors rather than by expanding the brackets. Any equation can have an integer, a variable, or the algebraic expression itself as a factor.acc to our question-
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The model shows that 3 1/5 divided by 4/5 = 4.
What happens if you divide by 8/5 instead of 4/5
The solution after divide by 8/5 instead of 4/5 will be 2.
What is mean by Fraction?
A fraction is a part of whole number, and a way to split up a number into equal parts.
Or, A number which is expressed as a quotient is called fraction.
It can be written as the form of p : q, which is equivalent to p / q.
Given that;
The model shows that 3 1/5 divided by 4/5 = 4.
Now,
Substitute 8/5 instead of 4/5, we get;
⇒ 3 1/5 ÷ 8/5
⇒ 16/5 ÷ 8/5
⇒ 16/5 × 5/8
⇒ 2
Thus, The solution after divide by 8/5 instead of 4/5 will be 2.
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Answer:
Step-by-step explanation:
(3x-19)
what is the value of x
What does 3x-19 equal? You can find x without it being an equation
The solution is, the value of x is 6.33.
What is simplification?Simplify simply means to make it simple. In mathematics, simply or simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.
here, we have,
given that,
(3x-19) = 0,
here, we have to make the given expression simple, as we have to find the value of x.
so, we get, by isolating the variable & numbers,
adding 19 on both sides we get,
3x = 19
dividing both sides by 3, we get,
or, x = 19/3
or, x = 6.33
Hence, The solution is, the value of x is 6.33.
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an insurance company won't repair a car when the cost of the repair is 25% or more of the car's value. if a repair costs $1400, what is the value of the car (in interval notation)?
The interval of the cost of the car is [5600, ∞).
Here we have to find the cost of the car.
Let x be the cost of the car.
So from the question, we have that the cost of the repair is 25% or more of the car's value.
So we have to find the interval notation of the cost of the car.
x ×25% ≥ 1400
x × 25/100 ≥ 1400
x ≥ 1400× 100/25
x≥ 5600
So we get that the cost of the car is greater than $5600.
Therefore the cost of the car in an interval is [5600, ∞)
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can anyone help with this???
Answer:
L=66 degrees
KL=3.5
LM=8.7
At a sale, suits were sold for $130 each. If the suits originally cost $200 each, what percentage of its original price was a suit sold for?
Answer:
70%
Explan your answer :
200-130=70 and 70% of 100 = 30% so
Answer: 65
Step-by-step explanation:
0.65
×
100
=
0.65×100=
65
%
65%
i need help pls ahhhhh
Answer:
here is the answer have a good day
Answer:
1. 40/5=8
8 x 3p=24p
8(3p+5)=24p+40
2. 48/8=6
64/8=8
8(6q-8)=48q-64
find y when x=17 if y varies directly as x, and y=43 when x=11
The value of y when x = 17 is 66.5
How to determine the value of y?From the question, we understand that:
The variation is a direct variation
The equation of a direct proportion can be represented as
y = kx
Where:
y = independent variablek = constant of proportionalityx = independent variableFrom the question, we have
When x = 11, we have = 43
So, we have
11k = 43
Make k the subject
k = 43/11
Substitute k = 43/11 in y = kx
y = 43/11x
When x = 17, we have
y = 43/11 x 17
This gives
y = 66.5
Hence, the value of y is 66.5
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Headphones were bought for $44. Coupon code got 20% off then a 5% processing fee was after the discount. How much was the processing fee?
The processing fee was = $36.96
what is unitary method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units.Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.Recognizing the units and values is crucial when using the unitary technique to a problem.Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things. We are aware of the quantity of apples and the amount of money in the aforesaid problem.acc to our question-
let the price of headphones be= x
44*20/100=8.844-8.8=35.235.2*5/100=1.7635.2+1.76= 36.96Hence,The processing fee was = $36.96
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This shows a figure.
What is the measure of angle n?
65\degree65°
70\degree70°
110\degree110°
115\degree115°
To find the value of n we first have to find the value of angle m. because we know the sum of angle m and angle n would be equal to 180 degrees as they both lie on a straight line. to find angle m we have to use the angle sum property of a triangle which says the sum of all the internal angles of a triangle is equal to 180 degrees.
so using the angle sum property,
65+45+m = 180
m= 180-65-45
m=70
now we know m is 70 degrees
for n,
m+n = 180 -(i)
putting m=70 in equation (i)
70 + n = 180
n = 180-70 = 110 degree
in a region where we have had big earthquakes (magnitude 7 and above) roughly every 200 years, what is the probability that we will not have a big earthquake in this region in the next two years?
There is a 0.990025 probability that this area won't experience a major earthquake in the next two years.
Define probability.In the field of mathematics called probability theory, random occurrences are studied. The outcome of a random event can take any number of distinct shapes, but it cannot be anticipated before it occurs. The outcome is believed to have been decided by chance.
Given,
In a region where large earthquakes of magnitude 7 or higher have occurred about once every 200 years,
First, the likelihood of an earthquake with a magnitude of 7 or higher is 1/200 = 0.005.
The likelihood of there not being an earthquake is then requested, and it is 1-0.005 = 0.995.
The likelihood that there won't be an earthquake in two years is then
0.995 x 0.995, or.0990025.
The probability that we will not have a big earthquake in this region in the next two years is 0.990025.
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Help! What is the domain of the graph shown below?
A. All real numbers greater than 0.
B. All real numbers greater than -2
C. All real numbers between -5 and 4
D. All real numbers
Answer:
D
Step-by-step explanation:
there are no restrictions on the domain and
- ∞ < x < ∞
That is the domain is all real numbers
homogeneity of variance is an assumption for the one-way between-subjects anova. what does this assumption mean? group of answer choices that the population being sampled from is normally distributed that participants are randomly selected to participate in a sample that the variance is equal in each population from which samples are elected that one observation has no effect on the likelihood of another observation
The homogeneity of variance is an assumption for the one-way between-subjects anova means each population from which the samples are drawn has the same level of variation.
What is homogeneity of variance?Both t tests and F tests (also known as analyses of variance, or ANOVAs) are based on the premise that the population variances (i.e., the distribution, or "spread," of scores around the mean) of two or more samples are identical. The independent samples t-test and ANOVA employ the t and F statistics, which, provided that group sizes are equal, are often resistant to breaches of the assumption. A ratio of less than 1.5 between the largest and smallest group can be used to identify equal group sizes.
The independent samples t-test and ANOVA make the assumption of homogeneity of variance, which states that all comparison groups have the same variance. The homogeneity of variance is an assumption for the one-way between-subjects anova means each population from which the samples are drawn has the same level of variation.
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what is the slope of a line that passes through points (7,-5) and (16,7)
help pls pls pls pls pled
The sum of all angles in a triangle sum up to 180.
∠1 = x+37
∠2=x+67
∠3=90° (right triangle)
∠1+∠2+∠3 = 180°
(x+37)+(x+67)+90=180
2x+104+90=180
2x+194=180
2x=-14
x=-7
An angle can't be negative, but when plugged in it works!!
∠1 = -7+37=30
∠2=-7+67=60
30+60+90=180
Hope it helps!
Linda has a shelf that is 56 over 5 inches wide. How many catalogs can Linda arrange on the shelf if each catalog is 4 over 5 of an inch thick?
Answer:
Last option: 31
Step-by-step explanation:
No. of catalogs that can be arranged
= (longest side of shelf ÷ longest side of catalog) × (shortest side of shelf ÷ shortest side of catalog)
= (56 ÷ 5) × (5 ÷ 4)
= 31
solve the inequality 2b + 5 <_ 30
The solution of the inequality 2b + 5 ≤ 30 is b ≤ 12.5
What are inequalities?Inequalities refers to some type of equations where the relationship between the left hand side and the right hand side of an equation is expressed in terms of symbols other than equal to
The symbols include
less thangreater thanless than or equal to greater than or equal toIn the problem given the symbol used is less than or equal to and the equation is solved by
2b + 5 ≤ 30
2b + 5 - 5 ≤ 30 - 5
2b ≤ 25
dividing through by 2
2b / 2 ≤ 30 / 2
b ≤ 12.5
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The graph states f(x) is at(4,3) and g(x) is at (4,3) what input value produces the same output value for the two functions on the graph?
The ordered pair of the values of f(x) and g(x) of (4, 3) and (4, 3) indicates that the input value that produces the same output value for f(x) and g(x) functions is x = 3
What are the input and output values of a function?The input values of a function are the values that serve as the argument of the function. They are also known as the independent variable. The operations of a function are performed on the input values such that each input produces only one output, which is known as the dependent variable. The set of the input values is known as the domain of the function.
The output value of a function are the values of the function that gives the image of the input values, and they are known as the dependent variable. The set of the output values is the range of the function.
The points on the graph are;
f(x) = (4, 3), and g(x) = (4, 3)Therefore, from the graph, at the point x = 3, f(x) = g(x) = 4
The input value that produces the same output value for the two functions on the graph is the x-value of 3
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Bfbrbdnshdvadvsvsvsahdnagsnavs Bfbrbdnshdvadvsvsvsahdnagsnavs Bfbrbdnshdvadvsvsvsahdnagsnavs Bfbrbdnshdvadvsvsvsahdnagsnavs
Answer: What??
Step-by-step explanation:
Can someone please explain to me in simple words how to construct the circumcenter and incenter of a triangle? I've tried watching videos and reading articles but the wording is too complicated.
I'm doing the IXL skill if that helps
The circumcenter is where three perpendicular bisectors intersect and the incenter is where the three angle bisectors intersect.
What is circumcenter?The circumscribed circle or circumcircle of a polygon in geometry is a circle that passes through each of the polygon's vertices. This circle's circumcenter and circumradius are its centre and radius, respectively.
Construct angle bisectors of each angle of the triangle and their intersection point gives the incenter.
To find Circumcenter:
Construct perpendicular bisectors of all sides of the triangle and their intersection point gives the circumcenter.
Circumcenter Theorem: It states that the vertices of a triangle are equidistant from the circumcenter.
Incenter Theorem: It states that the incenter is equidistant from the sides of the triangle.
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7(x+4)-2[x-3(5+x)]=2/3(x-6)
Hope this helps! Bye, have a nice day!
A midwife delivers 10 babies considering a % chance of delivering a boy and 50% chance of delivering a girl, answer the following questions what is the probability that 6 of the babies will be boys?
A midwife delivers 10 babies, with 50% chance of delivering a boy and 50% of delivering a girl. The probability that 6 out of 10 babies will be boys is 20.5%
The problem can be solved using binomial distribution, that is the probability of 2 possible outcomes in a number of trials.
The formula is given by:
P(x) = ⁿCx . P^x . (1 - P)^(n-x)
x = total number of event A
n = number of trials
P = probability of A in a single trial
Parameters given in the problem:
n = 10
x = 6
P = 50% = 0.5
Plug these parameters into the formula:
P(6 boys) = ¹⁰C₆ . (0.5)⁶ . (0.5)⁴
= 0.205 = 20.5%
Hence, the probability that 6 out of 10 babies will be boys is 20.5%
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Colette is considering switching to a cell phone plan with unlimited texting. She currently
pays $38 per month for service, plus $0.20 per text. That adds up fast!
Write an equation that shows how the total monthly cost, y, depends on the number of texts,
X.
Do not include dollar signs in the equation.
y =
Answer:
y= 38 + 0.20x
The equation will be y=38+0.20x where x is the number of texts and y is in dollars.
What is equation?An equation is a relationship between the variables and constants representing how they are related to each other. It includes equal to "=" sign.
It is known that the fixed payment is of $38 and each text costs $0.20.
Assume Colette sends x texts in a month and y be the total cost.
Determine the monthly cost equation.
Total cost= Fixed cost+ x(cost of each text)
y=38+0.20x
So, the total monthly cost will be represented by the equation, y=38+0.20x.
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Tim, Paco, Maria, and Jenny are standing in line for lunch. Jenny is standing between Paco and Maria, and Paco’s position in line is an odd number. Tim is not standing on either end of the line, and he is in front of Jenny.
Which friend is standing first in line?
Answer:
Paco, Tim, Jenny, Maria
Step-by-step explanation:
Write a system of equations to describe the situation below, solve using any method, and fill
in the blanks.
Skill plans
At a candy store, Dean bought 2 kilograms of jelly beans and 3 kilograms of gummy worms
for $38. Meanwhile, Sue bought 3 kilograms of jelly beans and 3 kilograms of gummy worms
for $45. How much does the candy cost?
A kilogram of jelly beans costs $
and a kilogram of gummy worms costs $
The price of one kilogram of jelly bean and gummy worms is $7 and $8 respectively.
Let the price of 1 kilogram of jelly bean cost be x
and the price of 1 kilograms of gummy worms be y
Dean bought 2 kilograms of jelly beans and 3 kilograms of gummy worms
for $38
2x + 3y = 38......equation 1
Sue bought 3 kilograms of jelly beans and 3 kilograms of gummy worms
for $45
3x + 3y = 45........equation 2
Subtracting equation 2 from equation 1
2x + 3y - (3x + 3y) = 38 - 45
2x - 3x + 3y - 3y = -7
-x = -7
x = 7
2(7) + 3y = 38
14 + 3y = 38
3y = 24
y = 8
Therefore, the price of one kilogram of jelly bean and gummy worms is $7 and $8 respectively.
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What is the equation of the line that passes through the point (-4, 2) and has a
slope of 1/4?
Answer:
y=1/4x+3
Step-by-step explanation:
To write an equation, let's infer we need to write it in slope-intercept form. We need the y-intercept. We can plug 1/4 and (-4,2) into y=mx+b, to solve for b. We have:
2=1/4*-4+b
2=-1+b
3=b
Since we have the slope, 1/4, we can create our equation:
y=1/4x+3
Solve for b in (y=mx+b):
b=y-mx
b=2-(1/4)(-4)
b=2+1
b=3
So the equation is y= (1/4)x + 3
Will mark brainliest!
Determine the quadratic function of the form f(x)= a(x - h)² + k whose graph is given on the
right.
By using the vertex and the given point, we will see that the graphed quadratic equation is:
y = -(x - 2)^2 + 4
How to find the equation for the quadratic equation?A quadratic equation with a leading coefficient a and a vertex (h, k) can be written as:
y = a*(x - h)^2 + k
Here the vertex is (2, 4), replacing that we get:
y = a*(x - 2)^2 + 4
Now we also can see that the line passes through the point (0, -8), replacing these values we get:
-8 = a*(0 - 2)^2 - 4
-8 = 4a - 4
-8 + 4 = 4a
-4 = 4a
-4/4 = a
-1 = a
The quadratic equation is:
y = -(x - 2)^2 + 4
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in terms of i.
PLEASE HELP!!
Answer:
[tex]-4i\sqrt{3}[/tex]
Step-by-step explanation:
Answer:
[tex] - 4 \sqrt{3i} [/tex]
express -58 in the form of bi where b is a real number. TIME SENSITIVE!!
The number -58 is a real number and it cannot be represented as a complex number
How to determine the complex representation of the number?From the question, we have the following expression that can be used in our computation:
Expression = -58
The given expression above is a number
And also, it is a negative number
Negative numbers of this form are real numbers
This means that the such numbers cannot be represented as a complex number
Hence, the number -58 does not have a complex equivalent
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the cycle time for trucks hauling concrete to a highway construction site is uniformly distributed over the interval 50 to 70 minutes. what is the probability that the cycle time exceeds 65 minutes if it is known that the cycle time exceeds 60 minutes?
The probability that the cycle time exceeds 65 minutes if it is known that the cycle time exceeds 60 minutes is 0.25 .
What is probability?
The possibility or chance of an event happening is commonly believed to be the probability of it happening. In the most basic scenarios, the probability that a specific event 'A' will occur as a result of an experiment is calculated by dividing the number of ways that 'A' can happen by the total number of possible outcomes.
P(A) = Number of events concerning 'A' / Total events in consideration.
A highway construction site's cycle time for trucks transporting concrete is evenly spread over the range of 50 to 70 minutes, thus a = 50 and
b = 70
f(x) = 1/[b - a] = 1/[70 - 50] = 1/20 = 0.05, thus a uniform distribution.
Let P(cycle time is less than 65 minutes if it is known that the cycle time exceeds 55 minutes) be:
P(60 < X < 65) = ₆₀∫⁶⁵ f(x) dx = ₆₀∫⁶⁵ (0.05) dx = 0.05*[65 - 60] = 0.05*5
= 0.25
Thus, the probability that the cycle time exceeds 65 minutes if it is known that the cycle time exceeds 60 minutes is 0.25 .
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