Answer:
P [tex]\leq[/tex] 6
Step-by-step explanation:
Set up Equation:
17.50 + 36.25(p) [tex]\leq[/tex] 235
Simplify Expression to Solve for how many people can go the park, using inverse operations.
36.25(p) [tex]\leq[/tex] 235 - (17.50)
36.25(p) [tex]\leq[/tex] 217.5
p [tex]\leq[/tex] 217.5/36.25
p [tex]\leq[/tex] 6
Therefore, no more than six people can attend the amusement park.
25 students are going on a field trip and each student have to pay 10$ for lunch in addition to their ticket.write an expression that could represent the total cost for the students going on the trip.
Answer:
(10+t)*25
Step-by-step explanation:
25 students so the cost for 1 student needs to be multiplied by 25 for all the students
If lunch costs $10 by itself not including the ticket, we don't know how much the ticket costs so lets say ticket cost = t
$10+t = the cost for ONE student
but there are 25 students so, ($10+t)*25 could work
Expressions don't have equal signs so the total is (10+t)*25
ANSWER PLS!!!!!!!!!!!!!
[tex]\huge \boxed{\sf A.A\ and\ B.7}\\\\\\\displaystyle \sf Adding\ all\ sides\ equaling\ to\ perimeter\\\\x+x+x+5=26\\\\3x+5=26 \\\\\\Solve\ for\ x \\\\Subtracting \ 5\ from\ both\ sides\\\\3x+5-5=26-5 \\\\3x=21 \\\\Dividing\ both\ sides\ by\ 3 \\\\\frac{3x}{3} =\frac{21}{3} \\\\x=7[/tex]
Find the greatest integer that is less than the value of the logarithm. Use your calculator to check your answers.
log 17.52
The greatest integer that is less than the value of the logarithm log17.52 is 1.
We are required to check the value of greatest integer that is less than log17.52
As no base is mentioned, let us consider the base to be 10
Thus, we are required to find the value of log₁₀17.52
log₁₀17.52=log₁₀10+log₁₀7.52
log₁₀10=1
log₁₀7.52=log₁₀752/log₁₀100
=log₁₀752-2log₁₀10
= 2.876-2=0.876
Thus, log₁₀17.52=1+0.876 =1.876
Thus , log₁₀17.52 is 1.876
Therefore, The greatest integer that is less than the value of the logarithm log17.52 is 1
Disclaimer:
Since no base has been provided for the logarithm, 10 has been considered to be the base.
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Solve. Check for extraneous solutions. √11 x+3-2 x=0
x = -1/4 is an extraneous solution.
✓(11x + 3) - 2x = 0
Adding 2x on both sides of the equation we get
✓(11x + 3) - 2x + 2x = 0 + 2x
✓(11x + 3) = 2x
Squaring both sides of the equation we get
(✓(11x + 3))² = (2x)²
11x + 3 = 4x²
4x² - 11x - 3 = 0 : Equation 1
By middle term splitting equation 1 can be written as
4x² - 12x + x - 3 = 0
4x(x - 3) + 1(x - 3) = 0
(4x + 1)(x - 3) = 0
x = - 1/4 and 3.
Check extraneous solution by putting the value of x in the original equation -
Let x = -1/4
✓(11(-1/4) + 3) - 2(-1/4) = 0
✓(-11/4 + 3) + (1/2) = 0
✓(1/4) + (1/2) = 0
1/2 + 1/2 = 0
1 = 0
which is a contradiction, so, x = -1/4 is an extraneous solution.
Let x = 3
✓(11×3 + 3) - 2×3 = 0
✓36 - 6 = 0
6 - 6 = 0
0 = 0
Since, LHS = RHS, x = 3 is not an extraneous solution.
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Which of the following numbers is a factor of 63?
A 8
B 2
C 6
D 3
Answer:
The correct answer is D) 3.
Step-by-step explanation:
Since the number 63 is a composite number, 63 has more than two factors. Thus, the factors of 63 are 1, 3, 7, 9, 21 and 63.
True or False?
The ratio of squares to total shapes is 4 to 10.
The simplest ratio of squares to total shapes will be 2:7.
How to calculate the ratio?A ratio in mathematics shows how many times one number is contained in another. When two objects are related using numbers or amounts, the relationship is known as a ratio. For instance, if a dish of the fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio 4:3).
A ratio can have any number of quantities, such as counts of people or things or measurements of length, weight, time, etc. Both numbers must be positive in most situations. From the information, there are 4 squares as 10 triangles.
Therefore, the simplest ratio of squares to total shapes will be:
Number of squares = 4
Total shapes = 4 + 10 = 14
Ratio = 4 / 14
Ratio = 2/7
Therefore, the simplest ratio of squares to total shapes will be 2:7.
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There are4 squares and 10 triangles. What is the simplest ratio of squares to total shapes?
Write 3.73 x 10^-2 in standard form.
Answer:
0.0373
Step-by-step explanation:
move the decimal over 2 spots to the left
when the power is negative, move left
when the power is positive, move right
Which ordered pairs are on the graph of 7x - y = 2 ?
Select ALL that apply. Can you please show the work?
i think it is (0,-2). y=mx+b
Given f (x) = 10x and g (x) = 2x – 1, find (f /g) (x).
Then evaluate the division when x = 3
Answer:
6
Step-by-step explanation:
(f / g)(x)
= [tex]\frac{f(x)}{g(x)}[/tex]
= [tex]\frac{10x}{2x-1}[/tex] ← substitute x = 3
= [tex]\frac{10(3)}{2(3)-1}[/tex]
= [tex]\frac{30}{6-1}[/tex]
= [tex]\frac{30}{5}[/tex]
= 6
Help meeeeee plss !!!!
Multiple choices
A) 5
B) 25
C) 36
D) 21
E) 3
F) 55
Answer:
D)21
Step-by-step explanation:
I hope I can help. You won't make a mistake there
Answer:
Answer is D) 21
[tex]{ \tt{ {x}^{2} - 7x + 3 = 0}}[/tex]
Sum of roots [L + M]: -(-7) = 7
Product of roots [ LM ]: 3
[tex]{ \rm{L {}^{2} M +LM {}^{2} = LM(L + M )}} \\ \\ = { \rm{3(7)}} \\ \\ = 21[/tex]
small insurance company offers two plans, catastrophic and bronze. The catastrophic plan costs $170 per person per month, and the bronze plan costs $480 per person per month. Each month, the insurance company earns $477,300 from the 1,285 people that have purchased their insurance plans. Which of the following systems of equations represents the relationship between the number of catastrophic plans, c, and the number of bronze plans, b, per month?
The system of equations are:
c + b = 1285
170c + 480b = 477,300
What are the equations?Two equations would be derived from the information provided in the question. The equations are known as simultaneous equations. The equations would have to be solved together in order to determine the required values.
The methods that can be used to solve simultaneous equations are:
Elimination method Substitution method Graph methodThe form of the equations is:
Number of catastrophic plan sold + number of bronze plans sold = total plans sold
Cost of the catastrophic plan x number of the plan sold) + (number of bronze plan sold x cost of the plan) = total cost of the plans
c + b = 1285
170c + 480b = 477,300
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The first three rooms took the painter a total of 9 hours to paint. If the learning curve rate is 85%, how long will it take the painter to paint all 20 rooms in stately wayne manor?.
If the Learning curve rate is 85%, then the painter will need 35.5 hours to pant all 20 rooms.
Learning curve rate tells us that there will be improvement or the time for the task will decrease as the person learn the repetitive task.
The time for completing n units is given by the formula:
Tₙ = T₁ . nᵇ
Where:
T₁ = time to complete 1st task
n = number of units
b = ln (learning curve rate) / ln(2)
The given parameters:
T₃ = 9 hours
learning curve rate = 85%
Hence,
b = ln (0.85) / ln(2) = 0.693
Plug the values into the formula for n = 3
T₃ = T₁ . 3ᵇ
T₁ = T₃ / 3ᵇ = 9 / 3ᵇ
Substitute the parameters for n = 20.
T₂₉ = T₁ . 20ᵇ
= (9 / 3ᵇ) . 20ᵇ
= 9 . (20/3)ᵇ
Substitute b = 0.693
T₂₉ = 35.5 hours
Hence, it takes 35.5 hours for the painter to pant all 20 rooms.
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I need help with this problem please and thank you :)
Answer:
a. P = 190t -373,930 . . . . . t=actual year number
b. P = 6640
Step-by-step explanation:
Given the two points (1991, 4360) and (1999, 5880) on a linear relation between years and moose population, you want a formula for the population (P) and an estimate of the population in 2003.
a. FormulaWe can use the point-slope form of the equation for a line to write the formula for moose population. To do that, we need to know the slope of the line.
The slope is given by the formula ...
m = (y2 -y1)/(x2 -x1) . . . . . . . . line through points (x1, y1) and (x2, y2)
Using the given point values, we have ...
m = (5880 -4360)/(1999 -1991) = 1520/8 = 190
The point-slope equation for a line with slope m through point (h, k) is ...
y -k = m(x -h)
Using the first ordered pair, we can write the equation as ...
y -4360 = 190(x -1991)
y = 190x -373,930 . . . . . . . where x is the actual year number
Using P and t for the variables, the formula is ...
P = 190t -373,930
b. Population in 2003Using t=2003, the above formula evaluates to ...
P = 190(2003) -373,930 = 380,570 -373,930
P = 6,640
The linear model predicts the 2003 population to be 6640 moose.
__
Additional comment
The formula above uses actual year number. The year value can be translated any way you might want. For example, using t = years after 1991, the formula would be ...
P = 190(t +1991) -373,930
P = 190t +4360
Then t=12 for year 2003.
What is the estimate of 827 times 4 ?
Answer:
3,308
Step-by-step explanation:
the internet said that 3,308 was the answer.
[tex]827 \times 4 \approx820 \times 4[/tex]
[tex]820 \times 4 = 800 \times 4 + 20 \times 4 \\ 820 \times 4 = 3200 + 80 \\ 820 \times 4 = 3280[/tex]
[tex]827 \times 4 \approx3280[/tex]
In reality it's just that additional 4 sevens,so
[tex]827 \times 4 = 820 \times 4 + 4 \times 7 \\ 827 \times 4 = 3280 + 28 \\ 827 \times 4 = 3308[/tex]
Given that x and y are integers, explain why the product of x+√y and its conjugate will always be an integer.
(x+√y)(x-√y) = x² - y is always an integer.
Given that x and y are integers.
Then x + √y is an irrational number.
The conjugate of (x + √y) is (x - √y).
We need to find the product (x + √y)(x -√y).
Use the identity, (a +b)(a-b) = a²-b²
So (x + √y)(x -√y) = x² - (√y)²
= x² - y
Given that x is an integer. The square of an integer is always an integer.
Since x² and y are integers, their difference is also an integer.
So we can conclude that x²-y is an integer.
Hence, (x+√y)(x-√y) = x² - y is always an integer.
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Please help, and explain why answer is correct
Answer:
AD
Step-by-step explanation:
It is the only segment that meets a side of triangle ABC at a right angle.
A rectangle has a length 6 meters more than six times the
width. The area of the rectangle is less than 72 meters².
Using the variable x, write an expression that represents all
possible widths of the rectangle. Write your answer as an
inequality in the form a
The required expression or inequality for possible widths of the rectangle is -4 < x < 3.
Given:
A rectangle has a length 6 meters more than six times the width.
The area of the rectangle is less than 72 meters squared.
We have to find,
The expression or inequality that represents all possible widths of the rectangle.
Let x be the width of the rectangle.
Length of the rectangle is 6 meters more than six times the width.
length = 6x + 6
Area of rectangle is:
Area = length × width
Area = (6x + 6) × x
Area = 6x² + 6x
The area of the rectangle is less than 72 meters squared.
6x² + 6x < 72
6x² + 6x -72 < 0
Divide both sides by 6.
x² + x - 12 < 0
x² + 4x - 3x - 12 < 0
x(x + 4) - 3(x + 4) < 0
(x + 4) (x - 3) < 0
It is true if one factor is negative and other is positive. So,
x - 3 < 0 ⇒ x < 3 ...(i)
x + 4 > 0 ⇒ x > -4 ...(ii)
Using (i) and (ii), we get
-4 < x < 3
Therefore, the required expression or inequality for possible widths of the rectangle is -4 < x < 3.
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What is the value of the expression
-13(21 4/9)
The value of the expression is 284 5/ 9
What is a fraction?A fraction can be defined as the part of a whole.
Some types of fractions are;
Mixed fractionsSimple fractionsImproper fractionsProper fractionsGiven the fraction;
-13(21 4/9)
First, we convert the mixed fraction in the bracket to a proper fraction
- 13( 197/ 9)
Now, let's expand the bracket
-2561/ 9
Find the quotient
284 5/ 9
Thus, the value of the expression is 284 5/ 9
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The density of iodine is about 6.281 times the density of acetone. The density of acetone is about
785 kilograms per cubic meter. What is the density of iodine as a repeating decimal?
The density of iodine is about 6.281 times the density of acetone. The density of acetone is about 785 kilograms per cubic meter. What is the density of iodine as a repeating decimal?
The density of iodine as a repeating decimal is 4930.585 kilogram.
Given the density of iodine is about 6.281 times the density of acetone.
We can write as x=6.281y (take x=6.281y as equation(1))
Here, x is the density of iodine and y is the density of acetone
Now take the density of acetone is about 785 kilograms per cubic meter.
We can write as y=785 kg.
Now substitute y=785 kg in equation (1)
We get x=6.281[tex]\times\\[/tex]785 kg
x=4930.585 kg
Therefore, The density of iodine as a repeating decimal is 4930.585 kilogram.
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The density of iodine as a repeating decimal is 4930.585 kilogram. when the density of iodine is about 6.281 times the density of acetone, the density of acetone being 785 kilograms per cubic meter.
As given in the question the density of iodine is about 6.281 times the density of acetone.
It can be written as x=6.281y (take x=6.281y as equation(1))
Here, x is the density of iodine and y is the density of acetone
Now the density of acetone is about 785 kilograms per cubic meter as given in question
So, y=785 kg.
Now substituting y=785 kg in equation (1)
it is calculated as x=6.281 x 785 kg
x=4930.585 kg
Therefore, The density of iodine as a repeating decimal is 4930.585 kilogram.
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PLSS HELP :((
will mark brianlist if its the correct answer ty
Answer: d "y, because jhk = lmk"
Step-by-step explanation:
both triangles have a 65 and a 90 degree angle, since both triangles have to add up to 180 degrees, both sides equal 25
A doctor was interested in the blood pressure of all 16-year-olds in the state of Colorado. She gathered data from a random sample of 10 pediatricians in the state and wanted to create an appropriate graphical representation for the data. Which graphical representation would be best for her data?
The graphical representation in the sample that would be best for her data is a bar graph.
How to illustrate the information?It should be noted that based on the information, the doctor gathered data from a random sample of 10 pediatricians in the state and wanted to create an appropriate graphical representation for the data.
It should be noted that the bar graph will be applicable. This is because it will display the categories of data with a bar to represent the blood pressure of the children.
This can then be used to analyze the needed information.
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I'm failing Geometry right now please help
Answer:
x = 61
Step-by-step explanation:
2x + 6 + x - 9 = 180
3x - 3 = 180 add 3 to the side
3x = 183 Divide the sides by 3 And you get 61 for x
What is the value of m in the equation 1/2m - 3/4n when n = 8?
Answer:
m = 12Step-by-step explanation:
What is the value of m in the equation 1/2m - 3/4n when n = 8?
1/2m - 3/4*8 =
1/2m = 6
m = 12
--------------------
HELP!! I really need help on this bc I’m confused
the pair of points that are at a distance of 4 units are (2, 7) and (2, 3), which is option D.
Which points are separated by a distance of 4 units?For two points defined by the coordinates (a, b) and (c, d), we define the distance between these two points as:
distance = √(( a - c)^2 + (b - d)^2)
So you can just use that simple formula for the four pairs of points given and see which pair gives a distance of exactly 4 units, if we use the last pair wich is (2, 7) and (2, 3) and we replace the values in the correspondent places of the distance equation, we will get:
distance = √( (2 - 2)^2 + (7 - 3)^2) = 4
So we conclude that the pair of points that are at a distance of 4 units are (2, 7) and (2, 3), which is option D.
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NEED HELP ASAP WILL GIVE U BRAINLIEST
Based on the formulas given for PR and QR, the length of PR is 19.8 units.
How to find the length of PR?The shape that is given is an equilateral triangle. What this means is that all the sides of the triangle are equal.
This means that PR and QR are therefore equal:
PR = QR
This can help us to find the value of n by equating both formulas:
2n + 9 = 7n - 18
The value of n can then be found as:
7n - 2n = 18 + 9
5n = 27
n = 5.4
The length of PR can then be solved by substituting n into the formula:
= 2n + 9
= 2 (5.4) + 9
= 19.8 units
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find four consecutive integers with the sum of 54
The consecutive integers are 12 , 13 ,14, and 15 .
Integers are real , rational numbers which are not fractions.Integers can be negative , positive or zero. Integers are represented on the number line . Integers are a subset of Real numbers.Of the four consecutive integers let us consider the smallest integer be x.
Therefore the other 3 integers are x+1 , x+2 and x+3 .
Therefore the sum of the integers are:
x +(x+1)+(x+2)+(x+3)=4x+6
The sum of the integers is given 54.
∴4x + 6 = 54
or, 4x = 54 - 6
or, 4x = 48
or, x = 48 ÷ 4
or, x = 12
Therefore the three other integers are 13,14 and 15.
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Expand each logarithm.
log (2√x/5)³
Using logarithmic quotient and power rule, we expand each logarithm function log (2√x/5)³ as 3. log (2√x) - log (5).
According to the question, we need to expand we expand logarithm function log (2√x/5)³.In Logarithms, the power is raised to some numbers (usually, base number) to get some other number. It is an inverse function of exponential function.
Power rule for logarithm: log (a)ˣ = x log (a)
Quotient rule for logarithm: log (a/b) = log (a) - log(b).
⇒log (2√x/5)³
Applying power rule to the above logarithm function, we get
log (2√x/5)³ = 3. log (2√x/5) →(1)
Applying quotient rule to the equation (1), we get
3. log (2√x/5) = 3. log (2√x) - log (5)
Hence, using logarithmic quotient and power rule, we expand each logarithm function log (2√x/5)³ as 3. log (2√x) - log (5).
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Expand each logarithm.
log√x√2 / y²
After expanding logarithm equation is : [tex]\frac{\sqrt{2} \log_{10}(x) }{2y^2}[/tex]
What is logarithmic equation ?In, mathematics a logarithmic equation is inverse of exponential equation. That means, we can easily convert the logarithmic equation into exponential equation and vice versa. The basic form of the logarithm function can be written as .
[tex]log_ax=N[/tex]
where, a is the base of function or equation
x define expression
Mathematically, if [tex]a^N=x[/tex] is an exponential function then, this can be converted to logarithmic function as [tex]log_ax=N[/tex].
There are many formulas that are given to us for solving several simple and complex problems based on logarithmic functions and logarithmic equations.
Some important formulas of logarithms are :
log a . b = log a + log b log a/b = log a - log blog a^x = x log alog a^a = 1log (√x) = 1/2 log (x)The given expression can be written as,
[tex]\frac{log_{10}(\sqrt{x})(\sqrt{2} )}{y^2}[/tex]
as, log (√x) = 1/2 log (x)
[tex]= > \frac{\sqrt{2} \frac{1}{2} log_{10}x }{y^2} \\\\= > \frac{\frac{log_{10}x}{\sqrt{2} } }{y^2}\\ \\= > \frac{log_{10}(x)}{\sqrt{2} y^2} \\\\= > \frac{\sqrt{2}log_{10}x }{2y^2}[/tex]
Thus, Simplification of given expression is : [tex]\frac{\sqrt{2} \log_{10}(x) }{2y^2}[/tex]
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7 times the difference between a number and 5 Algebra expression
Step-by-step explanation:
so first just think about the question 7(x + 5)
Mrs. Ferreria asked her students to write a number in scientific notation that is greater than 500 but less than 5,000. circle the name of any student who correctly completed the task.