Answers
Answer:
Step-by-step explanation:
their income for the month of may is $3500
2% of this income was spent on movies
2% of $3500 = 2/100 × 3500
=0.02 ×3500
= $70
Related Questions
Given a collection of paired sample data, the ____________ algebraically describes the relationship between the two variables, x and y.
Answers
Final answer:
The linear equation describes the algebraic relationship between two variables in a paired sample data set, with the slope and y-intercept being key components of this equation.
Explanation:
Given a collection of paired sample data, the linear equation algebraically describes the relationship between the two variables, x and y. The most fundamental representation of a linear association is through a linear equation, which graphically manifests as a straight line in a scatter plot. Two commonly used forms of linear equations are y = mx + b and y = a + bx. The latter is frequently used in statistical contexts to differentiate from the algebraic context.
In these equations, m or b (when used as a coefficient) is known as the slope, indicating the rate of change or how much y changes as x changes. The y-intercept represented by a is the point at which the line crosses the y-axis, typically where x equals zero. A linear relationship between two variables is confirmed when a scatter plot of the pair shows points that approximate a straight line.
The average rate of change from x = 0 to x = 15 is about −4.667. How does the average rate of change from x = 0 to x = 20 compare to this number? The average rate of change from x = 0 to x = 20 is decreasing the average rate of change from x = 0 to x = 15.
Answers
Answer: The average rate of change from x = 0 to x = 20 is decreasing
✔ slower than
the average rate of change from x = 0 to x = 15.
Suppose that the height of the slide is 2 feet, when x = 20. What is the average rate of change over the entire slide?
-3.9
Step-by-step explanation:
So, the two answers are: Slower than, and -3.9
[4 - (3c - 1)][6 - ( 3c - 1)]
Answers
What is the solution of the square root of 3x+28-8=x (-8=x is not in the square root) any explanation and answer is appreciated!
Answers
.. √(3x +28) -8 -x = 0
x = -4 . . . . . . from the graph
_____
If you add 8 and square both sides, you get
.. 3x +28 = (x +8)^2
.. x^2 +13x +36 = 0
.. (x +9)(x +4) = 0
.. x = -9 or -4 . . . . . . . the -9 solution is extraneous
Will bought 3 college textbooks. One cost $32, one cost $46, and one cost $39. What is the average price of his books? What statement correctly calculates the average
Answers
117 / 3 = $39 ( average price)
The average price of the textbooks Will bought is $39, calculated by adding the individual prices and dividing by the number of books.
To calculate the average price of the textbooks Will bought, we simply sum up the costs of the three textbooks and divide by the number of textbooks. Let's do the math:
Add the cost of the textbooks: $32 + $46 + $39 = $117.Divide the total cost by the number of books: $117 / 3 = $39.The average price of the textbooks is $39.
can someone answer this ?
A circle has a circumference of 1pi
what is the diameter if the circle
Answers
πD = 1π
D = 1π/π
D = 1
the length of the diameter is 1 unit
TANYA HAS A DOG LEASH THAT IS 4 YARDS LONG SHE SHOORTENS THE LEASH BY 6 FEET. WHAT IS THE LENGTH OF THE SHORTENED LEASH
Answers
Answer:
Its 6 feet
Step-by-step explanation:
five cards are drawn from a standard deck of cards. each card is replaced after being drawn. what is the probability of the following event: p(3 and 3 and 3 and 2 and 2)?
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General Idea:
If A and B are independent, then the probability that events A and B both occur is:
[tex] p(A\; and\; B) = p(A) \times p(B). [/tex]
In other words, the probability of A and B both occurring is the product of the probability of A and the probability of B
Applying the concept:
Five cards are drawn from a standard deck of cards. Each card is replaced after being drawn.
There are four 3's in a deck of card, four 2's in a deck of card. In a deck of card there are 52, so...
[tex] \\[tex] p(3\; and\; 3\; and\; 3 \; and \; 2 \; and\; 2)=\frac{4}{52} \times \frac{4}{52} \times \frac{4}{52} \times \frac{4}{52} \times \frac{4}{52} \\ \\ Multiply \; numerator \; with \; numerator \; and \; denominator \; with \; denominator\\ \\ \frac{4 \cdot 4 \cdot 4 \cdot 4 \cdot 4}{52 \cdot 52 \cdot 52 \cdot 52 \cdot 52} \\ \\ Cancel \; Common\; Factor\\ \\ \frac{1 \cdot 1 \cdot 1 \cdot 1 \cdot 1}{13 \cdot 13 \cdot 13 \cdot 13 \cdot 13} =\frac{1}{13^5} =\frac{1}{371293} [/tex] \; =\; p(3) \times \; p(3) \times \; p(3) \times \; p(2) \times p(2) [/tex]
If your car gets 33 miles per gallon, how much does it cost to drive 370 miles when gasoline costs $2.80 per gallon?
Answers
A circle is inscribed inside a square as shown. If graphed on the coordinate plane, the coordinates of the center of the circle would be (2, 5) and the coordinates of one other point on the circle would be (5,2). Find the area of the square. A) 12 2 B) 18 C) 24 2 D) 72
Answers
.
The formula for area of a circle is A = (pi) x r^2
3.14 x 5 x 5 = 78.5
therefore the area of the square must be larger than 78.5 and 72 is your only option.
D would be ur closest answer
im not 100% sure this is what i would pick
Place the indicated product in the proper location on the grid. -4x 3 y 2 (7xy 4 )
Answers
Answer:
-28x^4y^6
Step-by-step explanation:
Given are two terms as
[tex]-4x^3y^2[/tex] and
[tex]7xy^4[/tex]
To find the product
we group like terms and find their product
Here we have -4 and 7 for coefficients : Product =-28
x terms are x^3 and x hence product = x^(1+3) =x^4
y terms are y^2 and y^4 hence product = y^(2+4) = y^6
Hence product is
[tex]-28x^4y^6[/tex]
Help!!!!! Please!!!
Using the given xy-graph, find the equation of the given line E in slope-intercept form.
Answers
This is because the line intersects the x-axis at the point (8,0)
The equation of line E will be x = 8.
What is a linear equation?A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
From the diagram, line E is perpendicular to the x-axis and parallel to the y-axis.
The slope of the line which is parallel to the y-axis will be ∞. Then the equation of line E will be
y = ∞x + c
y = (1/0)x + c
0y = x + c
x + c = 0
From the graph, the value of the variable c will be negative 8.
Then the equation of line E will be x = 8.
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Dakota and Christine went shopping. Dakota bought two scarves and one hat for $13 Christine bought one scarves and two hats for $14 what is the price of one hat and one scarf
Answers
One hat=h
2s+h=13
s+2h=14
h=13-2s
(plug that into the other equation)
s+2(13-2s)=14
s+26-4s=14
26-3s=14
-3s=-12
s=4
One hat=$5
One scarf=$4
5+4=9
Price of one hat AND one scarf is $9
Veronica bought a purse for 25 off its full price. what was the full price of the purse if Veronica paid $35.85 before sales tax? A) $59.75 B) $47.80 C) $ 60.85 D) $36.10
Answers
B- $47.80 for apex that's what i got.
The full price of the purse is C) $60.85.
Explanation:The price at which the purse is bought = $25
The price paid = $35.85
To find the full price of the purse, we need to add the discount amount to the price Veronica paid.
Since she got $25 off, the discount amount is $25.
Therefore, the full price of the purse is
= $35.85 + $25
= $60.85.
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You work at an ice-cream shop. One of your jobs is to order new ice-cream cones. You pick the cone that is 5 inches high and has a diameter of 3.5 inches. What is the volume of each cone? Use 3.14 to approximate pi. Round your answer to the nearest whole number.
Answers
Answer:
the correct answer is 16 cubic inches
Step-by-step explanation:
a ladder leans against a wall and reaches a point 35 feet up the wall.The base of the ladder is 7 feet from the wall.To the nearest tenth of a foot, what is the length of the ladder
Answers
[tex]a^2+b^2=c^2[/tex]
[tex]c = \sqrt{a^2+b^2} [/tex]
Plug in values:
[tex]c = \sqrt{35^2+7^2}= \sqrt{1274} = 35.69[/tex]
Rounded to the nearest foot, is, 35.69ft.
A tire at the top of a hill starts rolling down the hill. If the diameter of the tire is 36 inches, how many inches has the tire rolled if it has rotated exactly 10 times down the hill?
A) 180
B) 360
C) 36π
D) 360π
Answers
Answer:
Therefore ,(D) 360π inches.
Step-by-step explanation:
Given: A tire at the top of a hill starts rolling down the hill. If the diameter of the tire is 36 inches.
To find: How many inches has the tire rolled if it has rotated exactly 10 times down the hill.
Solution : We have given that diameter of tire = 36 inches.
Radius = [tex]\frac{Diameter}{2}[/tex]
Radius = [tex]\frac{36}{2}[/tex]
Radius = 18 inches.
Circumference of tire = 2 * π radius
Circumference of tire = 2 * π 18
= 36π
We need to rolled the tire 10 times down the hill
then, 10 * 36π = 360π inches.
Therefore ,(D) 360π inches.
what is the solution to the following system?
5x+2y+z=4
x+2z=4
2x+y-z=-1
A. x = 0, y = 1, z = 2
B. x = 1, y = –1, z = 2
C. x = 1, y = 0, z = –1
D. x = 2, y = 1, z = 0
Answers
1) Write two of the variables in terms of the third variable. For this case we write x, y in terms of z.
2) Substitute the expressions in the first equation since it relates all the variables.
3) Clear z.
4) with the value of z, find x, y
Answer:
A. x = 0, y = 1, z = 2
See attached image.
Order the set of numbers from least to greatest.
Answers
Question 1(Multiple Choice Worth 1 points)
(05.02 LC)
Which equation does the graph below represent?
A coordinate grid is shown. The x-axis values are from negative 5 to positive 5 in increments of 1 for each grid line, and the y-axis values are from negative 20 to positive 20 in increments of 4 for each grid line. A line is shown passing through the ordered pairs negative 4, 16 and 0, 0 and 4, negative 16.
y = fraction 1 over 4x
y = 4x
y = fraction negative 1 over 4x
y = −4x
Answers
1) (1/4)*(-4) = -1, not 16
2) 4*(-4) = -16, not 16
3) (-1/4)*(-4) = 1, not 16
4) -4*(-4) = 16 . . . . as required
The 4th selection is appropriate.
Which ordered pairs are solutions to the inequality x+3y≥−8?
Select each correct answer.
a. (−6, 0)
b. (0, −3)
c. (−5, −1)
d. (−16, 2)
e. (−1, −2)
Answers
Let's try the first one:
-6 + 3(0)>=-8
-6 + 0 >= -8
-6 >= -8
This is true, therefore this is a solution.
0 + 3(-3)>=-8
-9 >= -8
No, this is not a solution.
-5 + 3(-1) >= -8
-5 + -3 >= -8
-8 >= -8
Yes, this is a solution.
-16 + 3(-2) >= -8
-16 + -6 >= -8
-22 >= -8
No, this is not a solution.
-1 + 3(-2) >= -8
-1 + -6 >= -8
-7 >= -8
Yes, this is a solution.
Answer: a, c, and e are solutions.
Hope this helps!
Which graph represents the function?
Answers
The resulting graph of the rational function is the Graph at the top right graph 2.
To depict the rational function f(x) = 2/(x - 1) + 3, we must consider its characteristics. The function has a vertical asymptote at x = 1 because the function is undefined at that point, and it has a horizontal asymptote at y = 3 due to the behavior of the function as x approaches infinity. The graph will approach these asymptotes but never cross them.
For values of x greater than 1, the function will decrease towards the horizontal asymptote because the (x - 1) in the denominator increases, which causes the value of f(x) to decrease.
However, because of the '+3' term in the function, the curve will approach y = 3 as x goes to infinity.
To graph this function, plot several points where x is not equal to 1, then draw the curve that passes through these points while approaching the respective asymptotes.
The portions of the graph should fall above the horizontal line y = 3 for x < 1 and approach y = 3 from below for x > 1.
Therefore, the resulting graph of the rational function is the Graph at the top right graph 2.
The probable question may be:
Which graph represent the rational function f(x)=2/x-1+3
Could use some help!
Answers
[6, ∞) , x >= 6 so
answer is D. last one
6<= x < ∞
The cost of attendance at State College is $19,500 for the first year. Devise a periodic savings plan that will allow you to make small deposits for 5 years at a simple interest rate of 1.5% and save enough to pay for the first year at the college. 15 points!@!!
Answers
[tex]A=P*(1+r*t)[/tex]
Where:
A= total accumulated amount (principal + interest)
P= principal
r= yearly percentage rate
t= number of years
We need to save $19500 for the first year at a college. This is the amount we will have at the account after five years. In our case this is A.
Principal is the amount we need to put into savings to get the total amount needed. In our case this is P.
Yearly percentage rate is the percentage by which our savings increase at the end of a year. In our case this is r.
t is number of years that we are holding our money on the bank account.
To solve this problem we will assume that we are putting same amount each month on the bank account.
We are given:
A=$19500
P=?
r=1.5%
t=5 years
First step is to transform r into decimal number:
[tex]r= \frac{1.5}{100} =0.015[/tex]
Now we get back to our formula and we solve it for P:
[tex]A=P*(1+r*t) \\ P= \frac{A}{1+r*t} [/tex]
We insert numbers and we get our principal:
[tex]P= \frac{19500}{1+0.015*5} \\ P=18139.53[/tex]
We need to put $18139.53 into savings to get required amount after 5 years or 5*12=60months. Assuming that we put same amount each month into savings we need to put
[tex]18139.53 / 60 = 302.33[/tex]
This is our solution for this problem. This is closest to the amount we would need to put in real life. In real life we would earn interest onto interest and our monthly amount would be smaller.
Which of the binomials below is a factor of this trinomial?
x2 - 3x - 10
A. x + 2
B. x - 2
C. x - 1
D. x + 1
Answers
x² + 2x - 5x - 10 =
x(x+2) - 5(x+2) =
(x+2)(x-5)
A. x + 2
The binomials below are a factor of this trinomial that will be x + 2. Option A is correct.
What is a polynomial?Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.
[tex]\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n[/tex]
It is given that, the expression is, x² - 3x - 10
Binomials in algebra are two-term expressions joined by a plus or minus sign, such as ax+b. While the second term might or might not, the first term always contains a variable.
A binomial can be solved or simplified for further work by factoring, which is the process of looking for simpler terms that, when multiplied together, produce the original binomial expression.
Thus, the binomials below are a factor of this trinomial that will be x + 2. Option A is correct.
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140% of a number is 364. Find the number
Answers
1.4(x)=364
364/1.4 = 260
x=260
The number whose 140% is 364 is 260.
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
Number = M
140% of M = 364.
140/100 x M = 364
Solve for M.
M = 364 x 100 / 140
M = 260
Thus,
140% of 260 is 509.6.
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Find the values of x for which f(x) = g(x). (Enter your answers as a comma-separated list.) f(x) = x2, g(x) = x + 20
Answers
function f(x) = x²
function g(x) = x + 20
Solution:
Substitute f(x) with x² and substitute g(x) with (x + 20)
f(x) = g(x)
x² = x + 20
Move all terms to the left side. After moving, the positive ones become negative.
x² = x + 20
x² - x - 20 = 0
I break -x into -5x + 4x
x² - x - 20 = 0
x² - 5x + 4x - 20 = 0
Factorize x² - 5x
x² - 5x + 4x - 20 = 0
x(x - 5) + 4x - 20 = 0
Now factorize 4x - 20
x(x - 5) + 4x - 20 = 0
x(x - 5) + 4(x - 5) = 0
Separate (x - 5) from all terms using distributive property, the remaining one is (x + 4)
x(x - 5) + 4(x - 5) = 0
(x - 5)(x + 4) = 0
The solution
x - 5 = 0
x = 5
or
x + 4 = 0
x = -4
f(x) and g(x) will be both equal if the value of x is either 5 or -4
You have five identical pieces of equipment. There is a 1 in 10 chance that each piece will fail in a year. What is the likelihood that NONE of the pieces fail during a year?
Answers
.. (1 -0.1)^5 = 0.59049
The probability that none of the five identical pieces of equipment will fail during a year is approximately 59.049%, calculated using the statistical independence of each piece's probability of not failing, which is 0.9, raised to the power of 5.
The question is asking for the probability that none of the five pieces of equipment fails within a year when there is a 1 in 10 chance of failure for each piece of equipment. To calculate this, we use the principle of statistical independence. If the chance that one piece of equipment does not fail is 9 in 10 (or 0.9), then the probability that all five do not fail is 0.9 raised to the power of 5.
Mathematically, this is calculated as:
[tex](0.9)^5[/tex]= 0.9 * 0.9 * 0.9 * 0.9 * 0.9
Performing the multiplication, the probability that none of the five pieces fail during a year is approximately 0.59049.
In conclusion, there is a 59.049% chance that none of the identical pieces of equipment will fail during a year, assuming that the failures are statistically independent events.
The average time spent sleeping (in hours) for a group of medical residents at a hospital can be approximated by a normal distribution, with mean of 6.1 hours and standard deviation of 1.0 hour. Let x represents a random medical resedent selected at the hospital. Find P(x < 5.3).
Answers
[tex]Z=\frac{X- \mu}{\sigma} = \frac{5.3-6.1}{1} = -0.8[/tex]
Finding P(x < 5.3) is the same as finding P(z < -0.8). Using a table of standard normal distribution and z-scores we see that the probability is 0.21186.
The length of a rectangle is 3 m longer than its width.
The area of the rectangle is 154m^2
What is the width of the rectangle?
___m
Answers
.. (x +1.5)*(x -1.5) = 154
.. x^2 -2.25 = 154
.. x^2 = 156.25
.. x = 12.5
The width is 1.5 m shorter than this, or 11 m.
_____
Solved in the conventional way, you are looking for factors of 154 that differ by 3. This means you have to find the factors of 154, or use the quadratic formula.
.. 154 = 1*154 = 2*77 = 7*22 = 11*14 (the pair we want)
Once you have the factorization of 154, you have the answer. No equations are necessary, really.