Answer:
New cost of jacket = [tex]1.2x=1.2\times 600=720\ \text{sh}[/tex]
New costs of skirt = [tex]1.2y=1.2\times 200=240\ \text{sh}[/tex]
Step-by-step explanation:
Let original cost of jacket = [tex]x[/tex]
original cost of skirt = [tex]y[/tex]
The equation will be
[tex]2x+3y=1800[/tex]
New cost of jacket = [tex]1.2x[/tex]
New costs of skirt = [tex]1.2y[/tex]
The equation will be
[tex]6(1.2x)+2(1.2y)=4800\\\Rightarrow 7.2x+2.4y=4800[/tex]
The equations are
[tex]2x+3y=1800[/tex] [tex]\times 0.8[/tex]
[tex]7.2x+2.4y=4800[/tex]
[tex]1.6x+2.4y=1440[/tex]
[tex]7.2x+2.4y=4800[/tex]
Subtracting the above two equations we get
[tex]-5.6x=-3360\\\Rightarrow x=\dfrac{3360}{5.6}\\\Rightarrow x=600[/tex]
[tex]7.2\times 600+2.4y=4800\\\Rightarrow y=\dfrac{4800-7.2\times 600}{2.4}\\\Rightarrow y=200[/tex]
New cost of jacket = [tex]1.2x=1.2\times 600=720\ \text{sh}[/tex]
New costs of skirt = [tex]1.2y=1.2\times 200=240\ \text{sh}[/tex].
To celebrate getting a new job, Marco went out for a dinner that cost $100. If the localsales tax is 6% and Marco left a 15% tip on $100, what was the total cost of his meal?
Answer:
$121
Step-by-step explanation:
So if the meal cost $100, finding out the percentages is pretty easy.
The sales tax is 6%, and 6% of 100 is simply 6.
15% of 100 is simply 15.
So, adding the total cost of the meal plus the sales tax plus the tip is simply $121.
HELP NEEDED ASAP WILL GIVE BRAINLIEST
Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES
I really need help ASAP and I only have 2 left of missing assignments on math and I am really bad at math and I am going to fail help me plzzzzz T^T continue
It's Homework #1: Odds
Answer:
1/5 ; 7/10
Step-by-step explanation:
1) We have 10 letters, G and B are two letters, so the answer is 2/10, that can be simplify in 1/5
2) we have 7 parts black or white. The total parts are 10, so the answer is 7/10
To find 8% of a total you could multiply it by each of the following except which?
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 0.08, 8/100, 2/25, these are all possibilities
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
What is the solution to the proportion?
3/7 = w/42
Answer:
Step-by-step explanation:
Help please, I’ll give you brainliest
Answer:
12
Step-by-step explanation:
Please help me ASAP!!!
A circular pizza has a diameter of 16 inches. Each slice of pizza has a central of angle 45°. What is the area of each slice of pizza?
A. 3.1 in²
B. 6.13 in²
C.25.1 in²
D. 100.5 in²
I know that the area is 8π² I just don't know which answer choice it is.
Answer:
C.
Step-by-step explanation:
Radius = 16 ÷ 2 = 8
[tex]\frac{45}{360} *8^2*\pi =25.1[/tex] (3sf)
You can first find the total area of the circle which is [tex]64\pi[/tex].
Then, you can find the area of the slice of the pizza, if you take the ratio of the angle it creates with the total angle of a circle (360.)
For example, a semicircle's are would be [tex]\frac{180}{360} *8*\pi[/tex].
Answer:
C. 25.1 in²
Step-by-step explanation:
Hope this helps
which expression are equivalent to
A) 1/(-13)^0
B) (-1)^4
C) (-1)^7
D) 1^13
E) 1/13^-1
Answer:
A.. ....... . . ..........
Find the slope of the line that passes through the following points: `\left(\frac{2}{5},\frac{2}{3}\right)\ \ \left(-\frac{4}{9},\frac{3}{5}\right)` Show the work/explain!
Answer:
3/50
Step-by-step explanation:
Slope m = y2-y1/x2-x1
From the coordinate
x1 = 2/5, y1 = 2/3, x2 = -4/9 and y2 = 3/5
Substitute;
m = (3/5 - 2/3)/-4/9-2/3
m = (9-10/15)/(-4-6/9)
m = -1/15/-10/9
m = -1/15 * -9/10
m = 9/150
m = 3/50
Hence the slope of the line passing through the points is 3/50
I'M GIVING BRAINLIEST TO WHOEVER ANSWERS ALL OF THE QUESTIONS CORRECTLY! PLEASE HELP ME :D
Answer:
1. 68
2. 22
3. 9
4. 7
Step-by-step explanation:
hahsidijdkejeje
pleasssseee helpppppp ill give brainly (if you send a link ill report you)
Answer:
sorry i am trying but i don't know what to do
Step-by-step explanation:
Answer:
The answer is 10.4 :)
Step-by-step explanation:
125 + 5 x 10.4 will give you your 180 degree angle, therefore 10.4 should be the correct answer! Hope I could help <3
The measures of the angles of a triangle are shown in the figure below. Solve for x.
42°
(8x+14)
60°
Answer:
x = 8
Step-by-step explanation:
the sum of all three interior angles in any triangle = 180°
42° + 8x + 14° + 60° = 180°
8x = 180° - 42° - 14° - 60° = 64°
x = 8
10.What kind of circle would you need and which direction would the arrow go if you graph x < 1.5 on a number line?
closed circle, arrow goes right
open circle, arrow goes right
closed circle, arrow goes left
open circle, arrow goes left
Solve for angle S ? Please help
Answer:
s= 96
Step-by-step explanation:
s°= 48° +48° (ext. ∠ of triangle)
s°= 96°
s= 96
☆ Exterior angle of a triangle
- The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
You get a bagel for $1.95 and juice for $1.09. You pay with a 5-dollar bill. How much change will you get back?
Answer:
$1.96
Step-by-step explanation:
So first what you will do is add 1.09+1.95 then you get 3.04 after that you do 5-3.04 and you get 1.96. Hope I helped! Have a wonderful day!
PLSSS HELP (What are the square roots of 25?)
Answer:
5
Step-by-step explanation:
5*5=25
Answer:
The square root of 25 is 5, -5
Step-by-step explanation:
Find the surface area of the rectangular prism.
9 cm
15 cm
13 cm
Answer:
SA = 894 cm²
Step-by-step explanation:
SA = (2 x 15 x 9) + (2 x 13 x 9) + (2 x 15 x 13) = 270 + 234 + 390 = 894 cm²
Answer:
894 cm²
Step-by-step explanation:
[tex]A=2(wl+hl+hw)\\=2(13*15+9*15+9*13)\\=894[/tex]
Find the measure of the indicated angle to the nearest degree
Answer:
A) 18°
Step-by-step explanation:
To find the measure of the indicated angle, we can use trigonometric ratios.
Looking at the triangle, we can see that we are given the lengths of the two legs of the triangle, but not the hypotenuse. Since we are not given the hypotenuse, the sine and cosine ratios would not work since both of them require the length of the hypotenuse. We can use the tangent ratio, since it only requires the lengths of the two legs. Remember:
[tex]tan(?)=\frac{opposite}{adjacent}[/tex]
From looking at the image, we can see that the length of the side opposite to the angle is 3, and the length of the side adjacent to the angle is 9. Thus, we can use 3 as out opposite and 9 as out adjacent:
[tex]tan(?)=\frac{3}{9}[/tex]
Now we solve for ?. Lets take the inverse tan of both sides to get rid of the tan on the left side:
[tex]?=tan^{-1}(\frac{3}{9})[/tex]
And we get:
? ≈ 18.4349488° ≈ 18°
So the answer would be 18°, or A.
I hope you find my answer to be helpful. Happy studying.
You are working on a banner for Friday's pep rally. The length of the banner is 3 times the width. The length is 15 feet. What is the width?
Answer:
5 feet
Step-by-step explanation:
15/3 = 5
How could humans harm biocrusts?
Answer:
Many human activities can be unintentionally harmful to biological crusts. The biocrusts are no match for the compressional stress caused by footprints of livestock or people or the tracks
Step-by-step explanation:
Prove that the given quadrilateral is a square. show all the work
Answer:
A square is defined as a quadrilateral with 4 sides of the same length and 4 right angles. To verify the lengths of the sides, you can use the distance formula. To find the angles, you can use the slopes of the line segments and make sure sides that form an angle have opposite reciprocal slopes.
Step-by-step explanation:
First, find the coordinates of each point. You're provided with the scale and you can just count, but to make it easier, you can label the axes.
A: (0,8)
B: (6,6)
C: (4,0)
D: (-2,2)
The distance formula is used to find the distance between any two points on the coordinate form. Here it is:
d=sqrt((y2-y1)^2 + (x2-x1)^2)
d=distance, and (x1, y1) and (x2, y2) are the points.
Find the length of each side. I'll demonstrate with two sides, AB and BC.
AB: (x1,y1)=(0,8) and (x2,y2)=(6,6)
d=sqrt((6-8)^2 + (6-0)^2)
=sqrt((-2)^2 + 6^2)
=sqrt(4+36)
=sqrt(40)=2sqrt10
BC: (x1,y1)=(6,6) and (x2,y2)=(4,0)
d=sqrt((4-6)^2 + (0-6)^2)
=sqrt((-2)^2 + (-6)^2)
=sqrt(4+36)
=sqrt(40)=2sqrt10
Do the same thing with sides CD and AD, you'll see that they both also have a length of 2sqrt10 inches. (You don't really have to simplify, I just like to.)
To verify if the sides are perpendicular, you need to find the slopes of the sides and make sure that the product of the slopes of each pair of sides that form a vertex is -1. In other words, each pair of sides that form a vertex have to have opposite reciprocal slopes. I'll demonstrate with 2 vertecies, A and B.
To find the slope, you have to use the formula m=(y2-y1)/(x2-x1). m is the slope, and again, (x1, y1) and (x2, y2) are the points you're plugging in.
To find the measure of angle A, you need to find the slopes of sides AD and AB. (These are the sides that meet to form the angle.)
AD: (x1,y1)=(0,8) and (x2,y2)=(-2,2)
m = (2 - 8)/(-2 - 0)
= -6/-2
= 3
AB: (x1,y1)=(0,8) and (x2,y2)=(6,6)
m = (6 - 8)/(6 - 0)
= -2/6
= -1/3
So AD has a slope of 3 and AB has a slope of -1/3. Now you need to make sure they have a product of -1.
-1/3 * 3 = -1
So yes, it works! As I mentioned before, you can also think of them as opposite reciprocals.
The reciprocal of 3 is 1/3. The opposite of 1/3 is -1/3. So yes, the sides are perpendicular.
Let's do it again with angle B. We have to find the slope of BC now, since we already know the slope of AB.
BC: (x1,y1)=(6,6) and (x2,y2)=(4,0)
m = (0 - 6)/(4-6)
= -6/-2
=3
So the slope is exactly the same as the slope of AD. A square is a parallelogram, so it has two pairs of opposite parallel sides. We already verified that 3 and -1/3 are opposite reciprocals, so we now know that angle B has a measure of 90 degrees as well. You can do the same for angles C and D. That way, you'll have proven that all the sides have the same length and all the angles measure 90 degrees-- so the quadrilateral ABCD matches the definition of a square.
Hope this helped!
John has 8 different flags that he wants to hang on the wall. How many different ways can the flags be arranged in a row?
Answer:
40,320 different ways
Step-by-step explanation:
Here, we want to arrange 8 flags in a row
In the row, there will be 8 places
The first place has 8 flags to be chosen from
The second place has 7 and like that
So mathematically, the number of ways that we can arrange the flags is 8 factorial ways
We have this as:
8! = 40,320 different ways
Select all valued equal to -4/5
A -4/ -5
B- -4/ -5
C -4/5
D - -4/5
E 4/-5
Answer:
i think c and e since it will end with a negative value
What is not a true statement about the transformation shown below
Answer:
which transformation. ??
i think you didnt put a screenshot or sum
Step-by-step explanation:
NEED HELP ASAP
Camille runs every morning before school. On Monday, she ran 2.36 miles. On Tuesday, she ran 4.88 miles. On Wednesday, she ran 3.19 miles. After she ran on Thursday, her total mileage for the week was 12.81 miles. How many miles did she run on Thursday?
Answer: 2.38
Step-by-step explanation:
Okay so first you add up all the mileage from Monday-Wednesday. After you do that, subtract that number from 12.81 which will give you your answer
Hope this helps :)
Finish solving the equation -13y + 33 = 7.
Answer:
y = 2
Step-by-step explanation:
-13y + 33 = 7
add -13y to each side of the equation:
33 = 13y + 7
subtract 7 from each side:
13y = 26
divide both sides by 13:
y = 2
In 83.41, which digit is in the tens place?
Answer: 8
Step-by-step explanation:
80 is in the tens place. second digit left of decimal
Answer:
8
Step-by-step explanation:
80 is in the tens place. second digit left of decimal
How would you find: the number, 3/7 of which is equal to t ?
Answer:
n = (7/3)t
Step-by-step explanation:
Represente the unknown number by n. Then write the statement symbolically, as:
(3/7)n = t
and then solve the above equation for n by multiplying both sides by (7/3):
n = (7/3)t
3. A paint store sells 4 pt of paint for $19. Use a model to write a rate for this situation.
What does this rate mean? Show your work.
Answer:
4p = 19
p = 4.75
Step-by-step explanation:
p = cost for one pint of paint