Answer:
k = -1
Step-by-step explanation:
6(5k-8)-20= 11(2k-3)+3k | Given
30k - 48 - 20 = 22k - 33 + 3k | Distribute
30k - 28 = 25k - 33 | Add numbers & combine like-terms
30k = 25k - 5 | Add 28 to both sides
5k = -5 | Subtract 25k from both sides
k = -1 | Divide -5 by 5
I'll mark brainliest pls help!
im stuppid
Answer:
c
Step-by-step explanation:
A-180
B-360
C-270
D-90
PLS HELP ASAP!!
Answer:
its d
Step-by-step explanation:
Which of the following statements is a property of parallelograms?
All sides are parallel.
Opposite sides are parallel.
No sides are parallel.
Adjacent sides are parallel
Answer:
Opposite
Step-by-step explanation:
Opposite sides are parallel is the statement which is a property of parallelogram.
What is Parallelogram?A quadrilateral is defined as a two-dimensional shape with four sides, four vertices, and four angles.
A parallelogram is a special type of quadrilateral that has both pairs of opposite sides parallel and equal.
There are six important properties of parallelograms to know:
Opposite sides are congruent .
Opposite angels are congruent .
Consecutive angles are supplementary.
If one angle is right, then all angles are right.
The diagonals of a parallelogram bisect each other.
In the given options Opposite sides are parallel is the statement which is a property of parallelograms.
Hence, Opposite sides are parallel is the statement which is a property of parallelogram.
To learn more on Quadrilateral click:
https://brainly.com/question/29934440
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If a call started at 7:53 and ends at 8:25.
How long did the call last?
Answer:
33 minutes
Step-by-step explanation:
33min
Answer: The answer to this math question about how long did the call has lasted from 7:53 PM to 8:25 PM is the call has been lasted long is 32 minutes ago.
Step-by-step explanation: Here is a brief step-by-step explanation in order to find how long did the call has lasted from 7:53 PM to 8:25 PM:
So, 25 minutes from the 8 hours to 8:25 PM and then, 53 minutes to 60 minutes is 7:25 PM + 7:32 PM.
I hope that my briefly short given answer with my briefly short given a step-by-step explanation in order to find how long did the call has lasted from 7:53 PM to 8:25 PM, please mark me as Brainliest, take care, always be safe, and have a great rest of the holiday winter break, Merry Christmas and a happy new year! :D
Sincerely,
Jason Ta,
The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.
una parcela de 45 m de ancho y 70 m de largo cuesta 78.750.000 ¿Cuánto cuesta otra parcela de terreno de igual calidad de 60 por 50 m?
Answer:
75000000
Step-by-step explanation:
se multiplica
45×70= 3150 metros
luego multiplica
60×50= 3000 metros
luego se divide
78750000/ 3150 = 25000
y por último multiplica
25000×3000
conclusiones
el metro cuadrado de tierra vale 25000 por lo que los 3000 metros cuadrados que son del terreno de 60x50 estan valorados en 750000000
There are groups of 5 6 in 5.
Answer:
la verdad es 17,en total del grupo
the area of a rectangular lawn is 255 metre square if its length is 15 M find its perimeter
Answer:
Step-by-step explanation:
width is 255/15=17
perimeter = 17*2+15*2=64
EZ
Mike collects trading cards. His favorites are baseball and football cards. For every 3 basebali cards he owns, Mike has 5 football cards. What is the ratio of baseball cards to football cards in his collection ?
Answer:
56 cards
Step-by-step explanation:
If 5 baseball cards multiplied by 8 is 40, then you multiply the 7 football cards by 8 as well.
7x8=56
56 is the answer because if 5 baseball cards multiplied by 8 is 40, then you multiply the 7 football cards by 8 as well.
Find the marginal cost, marginal revenue, and marginal profit functions. C(x) = 7x; R(x) = 9x − 0.001x2
Given:
The cost function is
[tex]C(x)=7x[/tex]
The revenue function is
[tex]R(x)=9x-0.001x^2[/tex]
To find:
The marginal cost, marginal revenue, and marginal profit functions.
Solution:
We know that,
[tex]Profit=Revenue-Cost[/tex]
[tex]P(x)=R(x)-C(x)[/tex]
[tex]P(x)=9x-0.001x^2-7x[/tex]
[tex]P(x)=2x-0.001x^2[/tex]
The marginal cost, marginal revenue, and marginal profit functions are the derivatives of cost, revenue and profit functions respectively.
Marginal cost function is
[tex]C'(x)=7\dfrac{d}{dx}x[/tex]
[tex]C'(x)=7(1)[/tex]
[tex]C'(x)=7[/tex]
Marginal revenue function is
[tex]R'(x)=9(1)-0.001(2x)[/tex]
[tex]R'(x)=9-0.002x[/tex]
Marginal profit function is
[tex]P'(x)=2(1)-0.001(2x)[/tex]
[tex]P'(x)=2-0.002x[/tex]
Therefore, the marginal cost, marginal revenue, and marginal profit functions are [tex]C'(x)=7[/tex], [tex]R'(x)=9-0.002x[/tex] and [tex]P'(x)=2-0.002x[/tex] respectively.
alguien me ayuda con esto ?
Answer:
como vamos a resolverlo si no nos muestra la recta porque en la recta estan los valores
Can someone help me with this umm math thingy
Answer:
1. The similar triangles are ΔXYZ and ΔPQR
The triangles are similar by the AA rule of similarity
2. The similar triangles ΔXYZ and ΔPQR cannot be assumed as being congruent because more information are required about the length of a pair of corresponding sides of both triangles
3. x = 17.5
4. x = 20
Step-by-step explanation:
1. The angles of triangle ΔXYZ are;
∠X = 32°, ∠Y = 84° and ∠Z = 180° - (84° + 32°) = 64°
The angles of triangle ΔPQR are;
∠P = 64°, ∠R = 32° and ∠Q = 180° - (64° + 32°) = 84°
The angles of triangle ΔABC are;
∠A = 64°, ∠C = 92° and ∠B = 180 - (92 + 64) = 24°
Therefore, the two similar triangles are ΔXYZ and ΔPQR
The triangles are similar based on Angle-Angle (AA) rule of similarity
2. The similar triangles ΔXYZ and ΔPQR cannot be assumed as being congruent because more information are required about the length of a pair of corresponding sides of both triangles
3. We have by corresponding triangles formed by the tree and Enzo as follows;
5 ft./(6 ft.)= x/(21 ft.)
∴ x = 21 ft.× (5 ft./6 ft.) = 17.5 ft.
x = 17.5 feet
4. By corresponding triangles, we have;
(35 ft.)/(40.5 ft.+ 54 ft.) = x ft./(54 ft.)
∴ x ft. = (54 ft.) × (35 ft.)/(40.5 ft.+ 54 ft.) = 54 ft. × (35 ft.)/(94.5 ft.) = 20 ft.
x ft. = 20 ft.
∴ x = 20
Need help will give you the brainliest
Answer:
2(9r) and 18r are equivalent
At a clothing store, 3 T-shirts and 8 hats cost $ 65. The cost of 2 shirts and 2 hats is $ 30. How much does each shirt and hat cost?
Answer:
1 shirt=$7.50 and 1 hat=$7.50
Step-by-step explanation:
The variable y varies directly as x and inversely as z. When x = 4 and z= 14, y=2.
Write a combined variation equation and find y when x = 6 and z= 3.
Given:
The variable y varies directly as x and inversely as z. When x = 4 and z= 14, y=2.
To find:
The combined variation equation and find y when x = 6 and z= 3.
Solution:
The variable y varies directly as x and inversely as z.
[tex]y\propto \dfrac{x}{z}[/tex]
[tex]y=k\dfrac{x}{z}[/tex] ...(i)
Where, k is the constant of proportionality.
Putting x=4, y=2 and z=14, we get
[tex]2=k\dfrac{4}{14}[/tex]
[tex]2=k\dfrac{2}{7}[/tex]
[tex]2\times \dfrac{7}{2}=k\dfrac{2}{7}\times \dfrac{7}{2}[/tex]
[tex]7=k[/tex]
Putting k=7 in (i), we get
[tex]y=7\dfrac{x}{z}[/tex]
Putting x=6 and z=3, we get
[tex]y=7\times \dfrac{6}{3}[/tex]
[tex]y=7\times 2[/tex]
[tex]y=14[/tex]
Therefore, the required equation is [tex]y=7\dfrac{x}{z}[/tex] and the value of y is 14 when x = 6 and z= 3.
One angle of an isosceles triangle measures 140°. Which other angles could be in that
isosceles triangle? Choose all that apply.
140
61
20°
7
Which number line shows the solution to the inequality
4x + 5 2 9?
A
HT
-4-2 0 2 4
B
HITH
--4-2 0 2 4
c
HHHHHH
-4-2 0 2 4
HHHHH
-4-2 0 2 4
How would you make $17.84. (Use the least amount of bills and coins.) *
Answer:
$17.85
1 ten
1 five
2 ones
3 quarters
1 nickel
4 pennies
Hope I helped! <3 :)
$24.96
1 twenty
4 ones
3 quarters
2 dimes
1 penny
Katie is 1.73 m tall. George is 7 cm shorter than Katie. How tall is George?
Give your answer in m
Answer:
Katie height =1.73 m
George height =7 cm
formula
1 meter =100 cm 7/100 =0.007m
so George height =0.007 m
height of George = Katie height - George height
= 1.73 - 0.007 m
= 1.723 mHeight of George = 1.723 mStep-by-step explanation:
Select the line plot that represents the given ages of students in a youth choir.
14, 13, 14, 15, 17, 12, 15, 16, 14, 16
PLEASEE I NEED HELP ON THIS
Answer: B
Step-by-step explanation:
ANSWER THE QUESTION PLZ!!!!
Answer:
C is your Answer
Step-by-step explanation:
Answer:
a or b i will help no further
please help!!! giving brainlest , please don’t joke around.
Answer:
67.5 mm²
Step-by-step explanation:
Alright, we're going to make 3 different smaller shapes
Shape (triangle)
a=1/2(b)ha=1/2(5(3)= 7.5Shape (skinny rectangle)
a=l·wa=2·9= 18Shape (bigger rectangle)
a=l·wa=7·6= 42Add them all together
42+18+7.5= 67.5
Lori bought some cookies for $2 each and muffins for $3 each. She bought twice as
many muffins as cookies and spent $16. How many cookies did Lori buy?
Answer:
2 cookies
Step-by-step explanation:
let c represent cookies, m represent muffins. set up a system of equations:
2c+3m=16
m=2c
(the top equation shows that cookies are $2 each, and muffins are $3, and that the total cost is $16. the bottom equation shows that Lori bought twice as many muffins as cookies).
then solve the system of equations by substitution, substituting 2c for m in the top equation:
2c+3(2c)=16
2c+6c=16
8c=16
c=2
this means that lori bought 2 cookies.
Answer:
2 cookies
Step-by-step explanation:
let c = no. of cookies
2c = no. of muffins
The cost for c cookies is 2c since each cookie was $2
and the cost of 2c muffins is 3(2c) = 6c since each muffing was $3
The total cost = 2c + 6c = 16
8c = 16
c = 2
So, she bought 2 cookies and 4 muffins
What is 5.545 as a percent?
Answer:
545.5%
Step-by-step explanation:
Answer:
Step-by-step explanation:
Multiply both numerator and denominator by 100. We do this to find an equivalent fraction having 100 as the denominator.
5.545 ×
100
100
= (5.545 × 100) ×
1
100
=
554.5
100
Write in percentage notation: 554.5%
help giving brainliest b,c,d
Someone please tell me the domain and range. Thank you.
one is (5) because Domain is left to right
and number two is (4) because range is up and down
HELP ASAP its due today
also please include the work if possible
calculate 50% of 200
Answer:
100
Step-by-step explanation:
hopes this helps
Answer:
100
Step-by-step explanation:
HELP I NEED IT NOW ITS CLASSWORK 20 points
Answer:
Ok
3. 12, 3, 6, and 24
4. 60 and 30.
5. 0, 1, and 10.
Step-by-step explanation:
HOPE THIS HELPS!!
Please help me ASAP
What is the area of this composite shape?
Answer: 51 sq in
The explanation are in the photos
Answer: 51 in
Step-by-step explanation:
To do this you need to split the composite shape into two separate shapes; a triangle and a rectangle.
To work out the area of the rectangle you have to do 6x7=42
Then to work out the area of the triangle you have to do 13-7 to get the height of only the triangle h (height)=6
Then to find out the base of the triangle you have to do 6-3 as 6 is the overall length b (base)=3
The formula for the area of the triangle is b×h/2 (base times height divided by 2) which is also displayed as 3x6/2=9 which is the area of the triangle
So to work out the area of the composite shape you have to add the area of the rectangle and the area of the triangle (42+9).
find the sale price to the nearest cent .. $40 sweater; 33%discount
Answer:
$26.80
Step-by-step explanation:
(I don't know exactly how other people were taught to do percentages, but this is how I was taught and I find it the easiest for me.)
You are going to subtract your percentage number by 100.
100 - 33 = 67
This will give you your multiplier so you can then get your answer but you have to turn it into a decimal.
0.67 x 40 = 26.80
