Answer:
The Consumer Price Index (CPI) is a measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation, food, and medical care. It is calculated by taking price changes for each item in the predetermined basket of goods and averaging them
7x+18−6(x+1)−12 Please answer this you get 10 points!!!!
Answer:
x
Step-by-step explanation:
7x+18−6(x+1)−12
start out with distributive property
7x+18+(-6x)+(-6)+(-12)
then add the common things together
x+0
answer is just x, or infine answers, you could put in anything for x
Can someone please help me with these questions thank you
2-51
“Plot triangle ABC with vertices A(0,0), B(3,4), and C(3,0) on graph paper. Using the origin as the point of dilation, enlarge it by 2 factors (Imagine using two rubber bands). Label this new triangle A’B’C’.
A) What are the side lengths of the original triangle, ABC?
B) What are the side lengths of the enlarged, A’B’C?
C) Calculate the area and the perimeter of A’B’C.
Answer:A) What are the side lengths of the original triangle, ABC?
B) What are the side lengths of the enlarged, A’B’C?
C) Calculate the area and the perimeter of A’B’C.
The required measure of the angle x and y is 45° and 109° respectively.
A triangle with two sides and two congruent angles is called an isosceles triangle.
Here,
A)
triangle is isosceles, so the two angles will be equal, and the sum of the angles in the triangle is 90°.
2x + x + x = 180
4x = 180
x = 180 / 4
x = 45
Similarly,
(B)
Some of the remote interior angles is equal to the remote exterior angle,
71 + (180 - 142) = y
y = 71 + 38
y = 109°
Thus, the required measure of the angle x and y is 45° and 109° respectively.
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What is the ordered pair of C' after point C (1, 2) is rotated 90° clockwise?
A. C' (-1,2)
B. C (1, -2)
C. C (2,1)
D. C' (2, -1)
Answer:
D
Step-by-step explanation:
Under a clockwise rotation about the origin of 90°
a point (x, y ) → (y, - x ), thus
C(1, 2 ) → C'(2, - 1 ) → D
The image after the rotation is C' (2, -1), the correct option is D.
What is the image after the rotation?Here we have the point (1, 2), and we have a rotation of 90° clockwise.
Notice that our point is on the first quadrant, then a rotation of 90° will leave us in the fourth quadrant.
The change that we will have is a permutation of the values, and the y-value must become negative, then the transformation gives:
(1, 2) ---> (2, -1)
The correct option is D.
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Oranges are on sale for $0.78 per pound. Bananas are on sale for $0.50 per pound. Debbie buys only oranges at the store this week. Is the total price she pays proportional to the pounds of oranges she purchased?
Answer: May you please have answer choices. Please forgive me if I am being rude but I am not.
Answer:
Yes, the total price is proportional to the pounds of oranges she purchased.
Step-by-step explanation:
The price of oranges is $0.78 per pound.
So, the price $0.78 corresponds to one pound, in a way, that is called direct proportionality.
This means that the price will increase or decrease in a constant ratio, depending on the amount of pounds purchased.
For example:
If she buys 1 pound of oranges she will pay $0.78. Ratio is 0.78 (0.78/1)
If she buys 2 pounds of oranges she will pay $1.56. Ratio is 0.78 (1.56/2)
If she buys 2.5 pounds of oranges she will pay $1.95. Ratio is 0.78 (1.95/2.5)
If she buys 3 pounds of oranges she will pay $2.34. Ratio is 0.78(2.34/3)
We can see that ratio is constant, then we can say that the total price she pays is proportional to the pounds of oranged purchased.
12+9 2Divided by three
Answer:
7
Step-by-step explanation:
12+9=21
21 divided by 3 is 7
Marissa is ordering from least to greatest. Here are her steps:
The correct answer is B
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Explain how you know -5 and 1/5 are multiplicative inverse? I’m very stuck on this and need to get this math done
Answer:
they are multiplicative inverses because to find the inverse of a number you change it from positive to negative or vice versa, and you have to change it to it's inverse. to do this you have to put it in fraction form if it isn't already (so 5 would be 5/1) and flip it (5/1 flipped would be 1/5)
Step-by-step explanation:
They are reciprocals, that is why they are multiplicative inverse.
What is Multiplicative inverse ?
If we have a number, then reciprocal of that number is called multiplicative inverse of the number.
Example : If m be a number then 1/m is its multiplicative number.
How to elaborate the problem ?Here the number be -5.
Reciprocal of this number is -1/5
We know that reciprocal of a number is called multiplicative inverse.
So, -5 & -1/5 are multiplicative inverse of each other.
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“which expression is the factored form of x^2-7x+10?”
x y
3 −2
6 3
9 8
12 13
Determine whether the table represents a proportional relationship. If a proportional relationship exists, what is the constant ratio of
y
x
?
A) yes;
5
3
B) yes;
3
5
C) yes;
1
3
D) The table does not represent a proportional relationship.
Answer:
A.Step-by-step explanation:
Yes, they have a proportional relationship.
The table shows sequences, where x-values increase +3, and y-values increase +5, that is, while x increases 3 unites, y increases 5 units, this ratio between variables can be described as the slope:
[tex]m=\frac{13-(-2)}{12-3} =\frac{15}{9}=\frac{5}{3}[/tex]
This fraction or ratio is referring to what we said in words, while y increases 5 units, x increases 3 units. We observe that is a positive ration, this means that magnitudes are both increasing.
Therefore, the right answer is the first one A.
How to find the mean of the integers of -26, 39, -10, -16, 12, 31
Answer:
mean = 5
Step-by-step explanation:
"mean" is another term for "average"
to find the mean, you have to add all the integers up, and divide by the number of integers there are.
So you have to combine all the numbers together
-26 +39 -10 -16 +12 +31 = 30
Now you have to divide by 6, since there are 6 integers that you combined to get 30
30/6 = 5
the mean = 5
Hope this helps!
If you have any questions, feel free to ask :)
Find the value of x in each case
Answer:
x=17
Step-by-step explanation:
we know that
The sum of the internal angles of a triangle must be equal to 180 degrees
so
In the triangle ABC
m∠A+m∠B+m∠C=180°
substitute the values and solve for m∠C
4x+49°+m∠C=180°
m∠C=180°-49°-4x
m∠C=131°-4x
In the triangle EDC
m∠E+m∠D+m∠C=180°
we have
m∠E=x
m∠D=100°
m∠C=131°-4x -----> by vertical angles
substitute the values
[tex]x+100\°+(131\°-4x)=180\°\\-3x+231\°=180\°\\3x=231\°-180\°\\3x=51\°\\x=17[/tex]
The value of x for the given geometric problem is determined to be 17 by using the concept that the sum of the internal angles of a triangle is equal to 180 degrees.
Explanation:We are looking to find the value of x where two triangles are involved.
First, according to the laws of geometry, the sum of the internal angles of a triangle must be equal to 180 degrees.
So, in triangle ABC, m∠A+m∠B+m∠C=180°.
If we have m∠A = 4x and m∠B = 49°, then by substituting these values, m∠C becomes 180° - (49° + 4x) i.e 131° - 4x.
In the triangle EDC, the summation m∠E + m∠D + m∠C also equals 180°.
If m∠E=x, m∠D=100°, and m∠C=131°-4x, we can form an equation of x + 100 + 131 - 4x = 180 which simplifies to 231 - 3x = 180. Solving this equation gives x = 17.
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If BD = 7x - 10, BC = 4x – 29, and CD = 5x – 9, find each value.
[tex]\bf \underset{\leftarrow \qquad \textit{\large 7x-10}\qquad \to }{\stackrel{4x-29}{\boxed{B}\rule[0.35em]{10em}{0.25pt}} C\stackrel{5x-9}{\rule[0.35em]{17em}{0.25pt}\boxed{D}}} \\\\\\ BD=BC+CD\implies 7x-10=(4x-29)+(5x-9) \\\\\\ 7x-10=9x-38\implies 7x+28=9x\implies 28=2x \\\\\\ \cfrac{28}{2}=x\implies 14=x \\\\[-0.35em] ~\dotfill\\\\ \stackrel{BC}{4(14)-29\implies 27}~\hfill \stackrel{CD}{5(14)-9\implies 61}~\hfill \stackrel{BD}{7(14)-10\implies 88}[/tex]
Adam is carrying books to the classroom for his teacher. Each book weighs 3.85 pounds. If he carries 4 books, about how many pounds is Adam carrying?
Adam is carrying a total of 15.4 pounds of books to the classroom, calculated by multiplying the weight of one book (3.85 pounds) by the number of books (4).
Explanation:The subject of this question is Mathematics, and it is appropriate for a middle school grade level. The student has asked about the total weight Adam is carrying when he transports four books to the classroom, with each book weighing 3.85 pounds.
To find the total weight of the books Adam is carrying, we multiply the weight of one book by the number of books:
Weight of one book = 3.85 pounds Number of books = 4 Total weight = Weight of one book imes Number of books Total weight = 3.85 pounds imes 4 Total weight = 15.4 pounds
Therefore, Adam is carrying approximately 15.4 pounds of books to the classroom.
PLEASE HELP. Use the Pythagorean Theorem
Question
Chi is planning to put a path of paving stones through her flower garden, as shown below. The flower garden is a square
with a side length of 10 feet. What will be the length of the path? Round your answer to 2 decimal places.
10
Provide your answer below:
feet
Answer:
14.14
Step-by-step explanation:
10[tex]10^{2} +10^{2} =x^{2}[/tex]
Simplifying gives you:
10\sqrt{2} ≈ 14.14213562...
The length of the path through Chi's flower garden is approximately 14.14 feet, rounded to two decimal places.
We have,
To find the length of the path through the flower garden, you can use the Pythagorean theorem since the path forms a right-angled triangle inside the square garden.
The garden is a square with a side length of 10 feet.
The path goes from one corner of the square to the opposite corner, forming the hypotenuse of a right-angled triangle.
The other two sides of the triangle are the sides of the square, which are also 10 feet each.
Using the Pythagorean theorem, you can find the length of the hypotenuse (the path):
[tex]c^2 = a^2 + b^2[/tex]
where c is the length of the hypotenuse (the path), and a and b are the lengths of the other two sides (which are both 10 feet in this case).
[tex]c^2 = 10^2 + 10^2[/tex]
c² = 100 + 100
c² = 200
Now, take the square root of both sides to find the length of the path (c):
c = √200 ≈ 14.14 feet
Thus,
The length of the path through Chi's flower garden is approximately 14.14 feet, rounded to two decimal places.
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I can't seem to figure out this problem -4q + 9 = 7q - 31
Answer:
q = 3.636363636 repeating
Step-by-step explanation:
- 4q + 9 = 7q - 31
+ 4q + 4q
9 = 11q - 31
+ 31 + 31
40 = 11q
[tex]\frac{40}{11} = \frac{11q}{11}[/tex]
Answer:
[tex]\large\boxed{q=\dfrac{40}{11}}[/tex]
Step-by-step explanation:
[tex]-4q+9=7q-31\qquad\text{subtract 9 from both sides}\\\\-4q+9-9=7q-31-9\\\\-4q=7q-40\qquad\text{subtract }\ 7q\ \text{from both sides}\\\\-4q-7q=7q-7q-40\\\\-11q=-40\qquad\text{divide both sides by -11}\\\\\dfrac{-11q}{-11}=\dfrac{-40}{-11}\\\\q=\dfrac{40}{11}[/tex]
Clinton’s garden is 12.25 m long and 14 m
wide. Find the perimeter of Clinton’s garden.
Answer:
P = 52.5
Step-by-step explanation:
P = ( L + L ) + ( W + W )
P = ( 12.25 + 12.25 ) + ( 14 + 14 )
P = 24.5 + 28
P = 52.5
Hello!
because of the way Clinton's yard is measured, it must be a rectangle.
here is the equation to find the perimeter of a rectangle:
L2 + W2 = P
12.25 * 2 = 24.5
14 * 2 = 28
24.5 + 28 = 52.5
your answer is: The perimeter of Clinton's yard is 52.5 Meters
I hope this helps, and have a nice day!
Solve for j. -1j+1>2
Please help.
Answer:
I think the answer is j > 1
what is the solution to the system of equations?
x+y=6
x=y+2
a. (4,2)
b. (3,3)
c. (2,4)
d. (6,4)
Answer:
a
Step-by-step explanation:
a. x=4, y=2
plug it in:
4+20=6 true
b. x=3, y=3
3+3=6
3=3+2
3=5 not equal
c. x=2,y=4
2+4=6
2=4+2
2=6 not true
d. x=6, y=4
6+4=6 not true
6=4+2
i don’t understand how to find this. can anyone break it down for me .
Answer:
See below.
Step-by-step explanation:
There is an infinite number of values of x that make each answer true. The problem is asking "for which value" with value in the singular, so I thought it was asking to choose one answer from several, and only one was correct.
1a.
Any number between 8 and 9 is correct.
Examples: 8.1, 8.01, 8.2, 8.3, 8.4, 8.9, 8.95, etc.
As I wrote above, there is an infinite number of correct answers.
1b.
Examples: 8.91, 8.92, 8.93, 8.99, 8.905, 8.97, etc.
Answer:
Assuming that inequalities are a valid answer for this question:
1a. 8 < x < 9
1b. 8.9 < x < 9.1
Step-by-step explanation:
Really, there's no exact answer. For example, on 1a, it could be 8.1, 8.11, 8.2, 8.99999, etc. Inequalities are used to denote the fact that the x value can be anywhere between two values. In 1a, x is between 8 and 9, and in 2a, x is between 8.9 and 9.1.
Question 10 of 11 Step 1 of 1
Correct
Thcorrect
One group (A) contains 390 people. Three fifths of the people in group A will be selected to win $100 fuel cards. There is another group (B) in a nearby town that will
receive the same number of fuel cards, but there are 553 people in that group. What will be the ratio of nonwinners in group Ato nonwinners in group B after the
selections are made? Express your ratio as a fraction or with a colon.
Answer
keypad
Restore Your Guth
2019 Hawkes Learning
Final answer:
To find the ratio of nonwinners in group A to nonwinners in group B, subtract the number of winners from the total number of people in each group. The ratio of nonwinners in group A to nonwinners in group B is therefore 156:319.
Explanation:
To find the ratio of nonwinners in group A to nonwinners in group B, we need to determine the number of winners in each group and subtract that from the total number of people in each group to find the nonwinners.
In group A, three-fifths of the 390 people will win fuel cards, which is equal to (3/5) * 390 = 234 people winning cards. So, the number of nonwinners in group A is 390 - 234 = 156.
In group B, the same number of fuel cards will be given out, but there are 553 people in that group. So, the number of nonwinners in group B is 553 - 234 = 319.
The ratio of nonwinners in group A to nonwinners in group B is therefore 156:319.
Which number line represents The solution set for the inequality -1/2x>4?
Answer:
the last one
Step-by-step explanation:
Answer:
Step-by-step explanation:
the last one
Ten years ago,a father was five times as old as his son.their combined age now is 80.find the age of the son
Answer:
The son is now 20. The father is now 60
Step-by-step explanation:
The son was 10, ten years ago. Five times that was 50 years, the age of the father. Now they have both aged 10 years, and the son is 20 and the father is 60. Add them together, and it makes 80.
CAN EXPLAIN FURTHER
appreciate brainliest but it doesn't matter
Answer:
20 years old
Step-by-step explanation:
10 → Ten years ago
50 → The father was five times as old as his son.
Current Ages
20 → Son
60 → Father
[tex]20 + 60 = 80[/tex]
I am joyous to assist you anytime.
Joe practiced his trumpet 3/4 hour on Monday and 7/12 hour on Tuesday. How long did he practice altogether?
2 hours
1 1/3 hours
2 2/3 hours
5 1/3 hours
Answer: 1 1/3 hours
Step-by-step explanation:
3/4 hour = 45 minutes
7/12 hour =35 minutes
45 +35 = 80 minutes ÷ 60 minutes = 1 1/3 hours
-x^2 +9x-12 in vertex form
please help !!!
Answer:
see explanation
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
To obtain this firm use the method of completing the square
Factor out - 1 from each term
y = - (x² - 9x + 12)[tex]\frac{33}{4}[/tex]
To complete the square
add/subtract (half the coefficient of the x- term )² to x² - 9x
y = - (x² + 2( - [tex]\frac{9}{2}[/tex])x + [tex]\frac{81}{4}[/tex] - [tex]\frac{81}{4}[/tex] + 12 )
= - ( (x - [tex]\frac{9}{2}[/tex])² - [tex]\frac{33}{4}[/tex] )
y = - (x - [tex]\frac{9}{2}[/tex] )² + [tex]\frac{33}{4}[/tex] ← in vertex form
Molly's Bikes rents bikes for $17 plus $8 per
hour. Emily paid $81 to rent a bike. For
how many hours did she rent the bike?
Answer:
8 hours
Step-by-step explanation:
81 - 17 = 64
64/8 = 8
A: 8 hours
A function assigns the value of each element of one set to the other specific element of another set. The number of hours for which Emily rents the bike is 8.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
A function from a set X to a set Y allocates precisely one element of Y to each element of X. The set X is known as the function's domain, while the set Y is known as the function's codomain.
Given that Molly's Bikes rents bikes for $17 plus $8 per hour. Therefore, for x number of hours the function to calculate the total rent can be written as,
Total rent, f(x) = $17 + $8(x)
Now, if Emily paid $81 to rent a bike. The number of hours can be calculated as,
f(x) = $17 + $8(x)
$81 = $17 + $8(x)
$81 - $17 = $8(x)
$64 = $8(x)
x = $64 / 8x
x = 8
Hence, the number of hours for which Emily rents the bike is 8.
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Least common multiple for 8,12,and24
Answer:
Its 24
Step-by-step explanation:
F(x)=5x-4 g(x)=3x-7 evaluate f(g(3)
Answer:
g(3)=9-7=2
f(2)=5×2-4=10-4=6
Answer:
Step-by-step explanation:
f(x)=5x-4 g(x)=3x-7
g(3) = 3(3)-7=2
f(g(3))=f(2) =5(2)-4 = 6
53% of the 1000 students at Barnett High are girls. How many boys are there in the school?
33
47
470
530
Answer:
470
Step-by-step explanation:
1000 x 0.53 = 530
1000 - 530 = 470
Simplify these expressions.
a. 13xyz + 9 + 2xyz + 3
b. 6ab + (–2ab) + 4 + 6
Answer:
a. 13xyz + 9 + 2xyz + 3
13xyz+2xyz+ 9+3 ( combine like terms)
15xyz+12
b. 6ab + (–2ab) + 4 + 6
6ab-2ab+4+6
4ab+10
Answer:
a. 13xyz + 9 + 2xyz + 3
Combine the coefficents of the like monomials.
(13 + 2 = 15)
15xyz + 9 + 3
Add the constants (9 + 3 = 12).
Answer: 15xyz + 12
b. 6ab + (–2ab) + 4 + 6
Combine the coefficents of the like monomials.
[6 + (–2) = 4]
4ab + 4 + 6
Add the constants (4 + 6 = 10).
Answer: 4ab + 10
Step-by-step explanation:
straight from Penn
Find last year's salary if, after a 2% pay raise, this year's salary is $36,720.