Answer:
Well the original price would be $44
Step-by-step explanation:
So make an equation
Lets make X stand for the price before the deduction
so x-x(0.3)=30.80
Subtracting the X by x(0.3) would tell us the price, the 0.3 stands for 30 percent and we know its 30 percent of X so we subtract that since 0.3x would give the change
Now just solve the equation
You’ll get 44.
*BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST**
Determine whether or not each expression below is a perfect square. Explain why the expression is or is not a perfect square. If it is not a perfect square, find the perfect square that seems “closest” to the given expression and show how the perfect square can be adjusted to be the given expression.
1. A(x)=x^2+6x+13
2. A(x)=2x^2+8x+14
Step-by-step explanation:
These aren't a perfect square bec. 1 st and 3rd terms must be perfect square
A(X) = X^2+6X +13 be perfect square if 13 Changed to 9
= X ^2+6X +9
A(x)= 2X^2+8X +14 be perfect square
= 4X ^2+ 8X + 16
Which is the graph of the linear inequality x – 2y > –6?
Answer:
uhhh d????
Step-by-step explanation:
Graph D represents the linear inequality x – 2y > –6.
The given inequality is x – 2y > –6.
We rearrange the inequality as y < (1/2)x + 3
Now we have the inequality in slope-intercept form, y < mx + b, where m is the slope (1/2) and b is the y-intercept (3).
To graph this inequality, you can start by plotting the y-intercept, which is the point (0, 3).
The slope of the graph is 1/2.
However, the inequality is y < (1/2)x + 3, which means the shaded region is below the line.
Hence, graph D represents the linear inequality x – 2y > –6.
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Find the value of x.
A. 20
B. 17
C. 22
D. 15
Answer:
The value if x is 20
Step-by-step explanation:
Hope this helps :)
The value of the variable x is 20. Then the correct option is A.
What is a circle?It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
If the two chords of the circle intersect at a point, then the product of the segments of the chord will be equal.
We know that the product of (x - 5) & (x - 8) and (x - 5) & (x) will be equal. Then we have
(x - 5) · (x - 8) = (x - 11) · x
Simplify the equation, then the value of the variable x will be
(x - 5) · (x - 8) = (x - 11) · x
x² - 13x + 40 = x² - 11x
2x = 40
x = 20
Thus, the value of the variable x is 20.
Then the correct option is A.
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can i get some help
Answer:
Option 3
Step-by-step explanation:
4 is a factor so the answer is.. 4(3a-b-5)
Each time a certain ball hits the ground, it bounces up 2/3 of its previous height. If the ball is dropped from 27 inches off the ground, what will be the height of the ball after the third bounce? *
Answer:
Height of ball after 3rd bounce = 8 inch
Step-by-step explanation:
Given:
Height of ball dropped = 27 inch
Bounces = 2/3 of previous height
Find:
Height of ball after 3rd bounce
Computation:
Height of ball after 1st bounce = 27[2/3]
Height of ball after 1st bounce = 18 inch
Height of ball after 2nd bounce = 18[2/3]
Height of ball after 2nd bounce = 12 inch
Height of ball after 3rd bounce = 12[2/3]
Height of ball after 3rd bounce = 8 inch
You buy x pounds of cherries for $2.99/b. What is a function rule for the
amount of change C you receive from a $50 bill?
Write in point slope form the equation of a line that has the slope of -4 and the passes
through the point (2,2)
Answer:
point slope form is below. since you have the slope already, all you have to do is plug in the point for x1 and y1 and then the slope for m
y - y1 = m(x -x1)
y - 2 = -4 (x - 2) (this is the equation)
Step-by-step explanation:
10 points! Daryl has a scholarship that pays 80% of his tuition for all four years he attends college. What is the total value of the scholarship if the tuition is $13,500 per year?
Answer:
The value of the scholarship is $10800
Step-by-step explanation:
Step one:
Daryl has a scholarship that pays 80% of his tuition per year
the total value of the scholarship if the tuition is $13,500 per year
Step two:
let us solve for the value of 80% of the tuition which is $13,500 per year.
this is calculated as
=80/100*13,500
=0.8*13,500
=10,800
At a trampoline park jumpers pay a jumping price p per hour and a one time sock fee 8 which expression represent the cost for 5 friends to jump at the trampoline park for 1 hour
Plot A(0, 0), B(1, 0), C(1, 2), D(2, 0), and E(2, 4). Then sketch ∆ABC and ∆ADE. By what postulate or theorem could you show that ∆ABC and ∆ADE are similar? A. AA Similarity Postulate B. SAS Similarity Theorem C. SSS Similarity Theorem D. Any of the above could be used to show that the triangles are similar.
Answer:
1) Please find attached the given plot and sketch of the points created with Microsoft Word
2) The correct option is;
A. AA Similarity Postulate
Step-by-step explanation:
1) Please find attached the given plot and sketch of the points created with Microsoft Word
2) The given parameters are;
The coordinates of the points are A(0, 0), B(1, 0), C(1, 2), D(2, 0) and E(2, 4)
Therefore, we have;
The length of segment AB = 1
The length of segment BC = 2
The length of segment AD = 2
The length of segment DE = 4
Therefore, we have;
∠ABC = ∠ADE = 90°
∠BAC = = artctan(2/1) = ∠DAE = artctan(4/2) = 63.435°
Therefore, ΔABC and ΔADE are similar by AA Similarity Postulate
Please explain I will also give BRAINLIEST
Answer:
read the step by step
Step-by-step explanation:
WARNING IM NOT POSTITIVE ITS RIGHT
a:how fast it will reach the ground
b:descending since they are going down
C:subtract a number by 1500
VERY URGENT PLEASE HELP!!!!!!!
Answer:
multiply 8 by 5 then round :D
Step-by-step explanation:
Answer:
H=3
Step-by-step explanation:
i’m really confused please help
Answer: probly d
Step-by-step explanation:
a ,b ,and c are subtracting makeing it hard top get something that was not in the problem
Oh I'm SORRY snowflake. Did I OFFEND YOU?
Do you want a bandaid? Do you want apple juice? Do you want a hug? Fine. I'll give you a hug. Right now. Come here, snowflake.
Merry Early Christmas
Answer:
Yes I want an apple juice and a hug
Step-by-step explanation:
thanks for the free points
a linear function has a y-intercept of -12 and a slope of 5 what is the equation of the line
Answer:
y=5x-12
Step-by-step explanation:
y = mx+b
hope this helps. i am in algebra two so you can trust my answer. Happy holidays stay safe
What is the answer? 2c-5 C=4
Answer:
2(4)-5=3
we know that C is going to be multiplied by 2 and the value of C=4
so 2*4 = 2(4)
2(4)-5
2*4=8
8-5=3
So, the answer is 3
What is the graph of y = 3jx|?
Ο Α.
5
>
Note: Your question sounds a little unclear and incomplete. I assume you want to get the idea about the graph of 3|x|. My answer may still clear your concept about the graphs.
Answer:
The graph of y=3|x| is attached below.
Step-by-step explanation:
Given the function
[tex]y=3\left|x\right|[/tex]
Determining the domain:
We know that the domain of a function is the set of input or argument values for which the function is real and defined.
The function has no undefined points nor domain constraints. Therefore, the domain is:
[tex]-\infty \:<x<\infty \:[/tex]
Determining the range:
We also know that the range of a function is the set of values of the dependent variable for which a function is defined.
[tex]\mathrm{The\:range\:of\:an\:absolute\:function\:of\:the\:form}\:c|ax+b|+k\:\mathrm{is}\:\:f\left(x\right)\ge \:k[/tex]
[tex]k=0[/tex]
[tex]f\left(x\right)\ge \:0[/tex]
Thus,
[tex]\mathrm{Range\:of\:}3\left|x\right|:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}[/tex]
Determining the x-intercept and y-intercept:
From the graph, it is clear that at x=0, y=0. Therefore, the y-intercept is (0, 0)From the graph, it is clear that at y=0, x=0. Therefore, the y-intercept is (0, 0)The graph of y=3|x| is attached below.
En una panadería se elaboraron 140 panes diarios, el 25% son conchas, 10% cortadillos, 40% donas y 25% bolillos. Cada pieza de pan tiene un costo de $8 pesos. ¿Cuanta ganancia se obtuvo en la venta de donas?, ¿Y cuanta ganancia se obtuvo en la venta de bolillos ?
Answer:
Se obtuvo $ 448 de ganancia por la venta de donas.
Se obtuvo $ 280 de ganancia por la venta de bolillos.
Step-by-step explanation:
1) ¿Cuanta ganancia se obtuvo en la venta de donas?
La ganancia es el producto del porcentaje producido de donas, expresado como razón, el precio unitario de la dona y el total producido de panes. Es decir:
[tex]C = \frac{40\,donas}{100\,panes}\times (140\,panes)\times \left(8\,\frac{USD}{dona} \right)[/tex]
[tex]C = 448\,USD[/tex]
Se obtuvo $ 448 de ganancia por la venta de donas.
2) ¿Cuanta ganancia se obtuvo en la venta de bolillos?
La ganancia es el producto del porcentaje producido de bolillos, expresado como razón, el precio unitario del bolillo y el total producido de panes. Es decir:
[tex]C = \frac{25\,bolillos}{100\,panes}\times (140\,panes)\times \left(8\,\frac{USD}{bolillo}\right)[/tex]
[tex]C = 280\,USD[/tex]
Se obtuvo $ 280 de ganancia por la venta de bolillos.
In this exercise we have to use the knowledge of finance to calculate the profit.
1) $ 448 profit was made from donut sales.
2) A profit of $ 280 was obtained from the sale of cupcake.
1)The profit is the product of the percentage produced of donuts, expressed as a ratio, the unit price of the donut and the total produced of breads. That is to say:
[tex]C= (\frac{40}{100} )*(140)*(8)= 448 USD[/tex]
$ 448 profit was made from donut sales.
2) The profit is the product of the percentage of cupcake produced, expressed as a ratio, the unit price of the cupcake and the total amount of bread produced. That is to say:
[tex]C= (\frac{25}{100}) *(140)*(8)= 280 USD[/tex]
A profit of $ 280 was obtained from the sale of cupcake.
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Plz help me
Write an equation in standard form Juan can ride his bike at 12 mi/h and walk at 4 mi/h. Write an equation that relates the amount of time he can spend riding or walking combined, to travel 20 miles.
Answer: 12+4+4
Step-by-step explanation:
Because if you add those together you get 20 miles per hour
Triangles XYZ and RST are similar. XY
is 24 inches, YZ is 16 inches, XZ is
12 inches, RS is 18 inches, and RT is
9 inches. Find the length of ST.
Answer:
ST = 12
Step-by-step explanation:
18/9 is similar to 24/12
taking one of those as a basis, if:
24-------18
16--------ST
24*ST = 16*18
24ST = 288
ST = 288/24
ST = 12
Austin has a square pool that measures 6 meters on each ude The pool is surrounded by a cement border that meayures 0.5 What is the area of the cement border (not including the pool of course)? HELP ASAP
Answer:
5
Step-by-step explanation:
6 mis 1 is 5
In 2007, the population of Ecuador was estimated at
13.8 million, with an annual growth rate of 1.6%. If this
rate continues, estimate when the population will reach
15 million.
Answer:
In 2012 , the population will be 15 million
Step-by-step explanation:
We start by setting up an exponential equation that defines the increase
P(t) = I(1 + r)^t
P(t) represents the present population = 15 million
I is the population in 2007 which is 13.8 million
r is 1.6% = 0.016
t is what we want to calculate
15 million = 13.8 million (1 + 0.016)^t
15/13.8 = (1.016)^t
1.09 = (1.016)^t
ln 1.09 = t ln 1.016
t = ln 1.09/ln 1.016
t = 5.429 which is approximately 5
So in 2007 + 5 = 2012, the population will be 15 million
A radio announcer said that 58 of the population in a certain city have listened to a radio station at some time. What decimal represents this fraction?
Therefore, the decimal represents the fraction is [tex]0.58[/tex].
What is the simplification?
Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.
Here given that,
A radio announcer said that [tex]58[/tex] of the population in a certain city have listened to a radio station at some time.
So, the simplification is of the form
[tex]\frac{58}{100}=0.58[/tex]
Hence, the decimal represents the fraction is [tex]0.58[/tex].
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A factory is manufacturing cell phones that must each have a thickness of 0.5±0.001 inch. Which inequality describes the acceptable range of x, the thickness in inches of a cell phone?
A factory is manufactuaring cell phones that must each have a thickness of 0.5+/-0.001 inch. Which inequality describes the acceptable range of x, the thickness in inches of a cell phone?
A. 0.499 ≤ x ≤ 0.501
B. x ≤ 0.49 or x ≥ 0.51
C. x ≤ 0.499 or x ≥ 0.501
D. 0.49 ≤ x ≤ 0.51
I believe it was C
Justin makes a necklace for his sister. Twelve beads take up 4 inches of
string. How many beads fit on 1 foot of string? Explain your answer.
1 point
Answer:
36
Step-by-step explanation:
12 inches are in a foot, 12 inches/4 inches=3, 12x4=36
Plz help I’m getting timed
Answer:
just use a calculator on ur phone.....
Answer:
152.2381
Step-by-step explanation:
Could someone help me with this?
Answer:
4
Step-by-step explanation:
m = 4
Reagan and Nathan are 40 miles apart on a bike trail when they start pedaling toward each other on their b bicycles. Reagan rides at a constant speed of 8 miles per hour, and Nathan rides a constant speed of 10 miles per hour. How long does it take until Reagan and Nathan meet?
Answer:
They meet in 2.22 hours.
Step-by-step explanation:
We can find the time at which Reagan and Nathan meet by equaling the time as follows:
[tex] v_{R} = \frac{x_{R}}{t} [/tex]
[tex] x_{R} = v_{R}t [/tex] (1)
[tex] v_{N} = \frac{x_{N}}{t} [/tex]
[tex] x_{N} = v_{N}t [/tex] (2)
Where R is for Reagan and N for Nathan.
Knowing that:
[tex] x_{R} + x_{N} = 40 mi [/tex]
By adding equations (1) and (2) we have:
[tex] x_{R} + x_{N} = v_{R}t + v_{N}t [/tex]
[tex] t = \frac{x_{R} + x_{N}}{|v_{R}| + |v_{N}|} = \frac{40 mi}{8 mi/h + 10 mi/h} = 2.22 h [/tex]
Therefore, they meet in 2.22 hours.
I hope it helps you!
Answer:
2.22
Step-by-step explanation:
poop
It is 2020,What year would the next harvest moon be?Also when is the next blue moon as well?(Btw this is and addition problem)
Answer:
I am pretty sure the next blue moon is October 31, 2020
and the last harvest moon was on September 28, 2015, in 2025 will be the next harvest moon.
-6 -3x=5x -4x can somebody solve this ?
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
x = −3/2
Decimal Form:
x = −1.5
Mixed Number Form:
x = −1/1/2