Mathematics High School

if a shopkeeper sold a watch for Rs 640 at a loss of 20%,find the cost price of the watch​

Answers

Answer 1

Answer:

Rs 800

Step-by-step explanation:

Selling Price =Rs640

Loss=20%

Let the cost price of the watch be Rs x.

SP=CP-20%of CP

or, 640=x-x/5

or, 640=4x/5

or, 4x=640*5

or,x=3200/4

Therefore, x=Rs 800. The cost price of the watch is Rs 800.

Related Questions

Question 6
2 pts
Two trains left a station at the same time. Train A traveled north at a certain speed and train B traveled south
at twice that speed. After 4 hours, the trains were 600 miles apart. How fast was each train traveling?
Train A was traveling
mph... (hint... this is the slower train)
Train B was traveling
mph.

Answers

Step-by-step explanation:

Train 1 speed be 'u'

Train 2 speed be 'v'

And v=2u

Speed=distance/time

Trains going in opposite directions

Relative speed= v-u (as train 1 I slower than train 2)

v-u=600/4

2u-u=150

u=150miles/hour

v=300miles/hour

Marsha and Ashanti and saving money for a summer trip. The amount of money Marsha has can be expressed as M(x) = 20x + 400. The amount that Ashanti has can be expressed as A(x) = 25x + 350. They have decided to combine their saving accounts. Formulate a function that will show their total earnings for the trip.

Answers

Step-by-step explanation:

it is the vertical of 5 and 6 aww you can do that

PLEASE HELP IM STUCK AND TIMED
Which statements describe survivors of the Holocaust after the war? Choose two correct answers.

Many did not want to return to Germany or Poland.
Many moved to Russia to create Jewish communities.
Many created communities near the concentration camps.
Many survivors moved to other countries around the world.
Many created museums and memorials for those who had died.

Answers

AnswerA &D

Step-by-step explanation:A

D

Answer (a): 2
(b) () Find the Highest Common Factor (HCF) of 120 and 150.

Answers

Answer:

The HCF of 120 and 150 is 30.

3) Use the diagram to help you answer the question below.
Rational numbers
Integers
-88
-10.1
-191
Whole numbers
22
Which of the following is both a rational number and a whole number?
-88
-10.1
-191
22

Answers

Answer:

The number that both a rational number and a whole number is 22

Step-by-step explanation:

The whole numbers are the non-negative integers

Whole numbers ∈ the set of IntegersWhole numbers ∈ the set of Rational numbers

The integers are rational numbers with denominators 1

Integers ∈ the set of Rational numbers

The rational numbers are the numbers that can be written in the form of [tex]\frac{a}{b}[/tex] ,

b ≠ 0

Let us study the numbers in the figure:

The set of whole numbers ⊂ the set of integers ⊂ the set of rational numbers

∵ 22 ∈ the set of whole numbers

∴ 22 is a whole number

∴ 22 is a whole number and an integer

∴ 22 is a whole number, an integer, and a rational number

The set of integers ⊂ the set of rational

∵ -88 and -191 ∈ the set of integers

∴ -88 and -191 are integers

∴ -88 and -191 are integers and rational numbers

∵ -10.1 ∈ The set of rational numbers

∴ -10.1 is a rational number

Let us answer the question

→ We need to find a number that is a rational number and a whole number,

   which means it must ∈ to the set of the whole numbers

∵ We only have one number ∈ the set of whole numbers, it is 22

∴ The number that both a rational number and a whole number is 22

Find the value of each shape. PLEASE HELP! I WILL GIVE BRAINLIEST!

Answers

Answer:

Triangle =  1 1/2

Square = 10

Step-by-step explanation:

Given:

Triangle + Triangle + Square + Square = 23

Square - Triangle = 4 1/2

10 + 10 + 1 1/2 + 1 1/2 = 23

Hence, Square = 10 and Triangle = 1 1/2

~Lenvy~

QUICK! Use long dvision to find a repeated decimal equlvalency for the fraction. Include all of your work as part of your final answer. 8/9​

Answers

Answer:

.8888888889

Step-by-step explanation:

caculator

The measures of the angles of a triangle are shown in the figure below . Solve for x

Answers

Answer:

19

Step-by-step explanation:

What is the product of the 2 x cubed and the 4 x squared y minus 3 x y squared

Answers

Answer:

10

Step-by-step explanation:

Each day, 1035 new apps are uploaded to a web server. After 28 days, how many apps would have been uploaded?

Answers

Answer:

count 1035 28 times i guess.

Step-by-step explanation:

What is 10,000 + 4,000 + 500 + 8 in standard form?

Answers

Answer:

Fourteen thousand five hundred eight

Step-by-step explanation:

what is the geometrick mean of 27 and 8 with the pothagereom theorem

Answers

Answer:

x = 6√6

Step-by-step explanation:

27/x = x/8

x² = 27 × 8

x = √(27 × 8)

x = √(9 × 4 × 6)

x = 3 × 2 × √6

x = 6√6

Answer:

The geometric mean of 27 and 8 is [tex]6\sqrt{6}[/tex] or about 14.697

Step-by-step explanation:

The geometric mean is [tex]( \prod_{i=1}^{n} x_{i})^{\frac{1}{n}}=\sqrt[n]{x_1x_2 \cdot\: \cdot \:\cdot x_n}[/tex] where [tex]n[/tex] is the number of values and [tex]x_i[/tex] are the values to average. Thus, your geometric mean is [tex]\sqrt{27*8}=\sqrt{216}=6\sqrt{6}\approx14.697[/tex]

question help please

Answers

Answer:

x = 25

Step-by-step explanation:

The sum of the three interior angles of a triangle is always 180°.

4x + 2x + 30 = 180

6x + 30 = 180

6x = 150

x = 25

Answer:

sum of the interior angles of a triangle =180

2× + 4× + 30=180

6× + 30= 180

6× + 30 = 180

6× = 180-30

6× =150

6×/6=150/6

×= 25

what is 49% of 15? I'm very confused on this.

Answers

Answer:

7.35 is 49% of 15.

Step-by-step explanation:

Answer:

7.35%

Step-by-step explanation:

Write an algebraic expression for the word expression. Use n for the
variable. *
eleven increased by a number
Your answer

Answers

Answer:

11+n

Step-by-step explanation:

eleven increased by a number

11+n

hope it helps

Brandon buys a two-quart bottle of juice for $8.32. What is the unit rate of the cost of the juice per fluid ounce?

Answers

Answer:

1 quart = 32 ounces

so we have 64 ounces

8.32 ÷ 64 ounces = $0.13 per ounce

This website is useless dont get any type of answers

Answers

Answer: Tetsurō Kuroo here!

Step-by-step explanation:

Yes that is true.

what can be squared to get 39.

Answers

Answer:

Firstly multiply 39 times 39 which will give you 1071 and that is your answer.

The square root of 39 is 6.245, so your answer would be

6.245 can be squared to get 39.

Charles owns a catering business. The amount his 10 most recent clients spent is shown in the histogram below. Why is the graph misleading? The x-axis scale shows the data is more clustered than it actually is. The y-axis scale shows the data is more skewed than it actually is. The scales are different on the x-axis and the y-axis. The data is not distributed equally across the x-axis intervals.



THE ANSWER IS A)The x-axis scale shows the data is more clustered than it actually is.



Youre welcome

Answers

The histogram showing the number of events with the events cost is

misleading because;

The x-axis scale shows the data is more clustered than it actually is

How can the histogram be analyzed?

Please find attached a possible diagram of the histogram in the question

created with MS Excel;

The data in the histogram is presented as follows;

[tex]\begin{array}{|c|c|c}Event \ Cost&Number \ of \ Events\\1000- 1499&2\\1500-1999&4\\2000-2499&3\\3000-3499&1\end{array}\right][/tex]

From the above table, we have that the class with event cost of 2000 to

2499 is left out, therefore, the data is more clustered.

The correct option is therefore;

The x-axis scale shows the data is more clustered than it actually is

Learn more about histograms here:

https://brainly.com/question/1413492

Answer:

its a

Step-by-step explanation:

got it right on edge

If someone solves the surface area I’ll be marking them brainliest

Answers

Answer:

the correct answer for the rectangular prisim is 32

The surface are of the rectangular cuboid is 32.

1. Label the length (l), width (w), and height (h) of the prism

2. Use the formula, SA=2lw+2lh+2hw, to find the surface area.

Another option:

- Add the areas of all 6 faces

Solve the following equations to find the variables.

Answers

1. 44
2. 43
3. 7

Correct me if I’m wrong

12+z=56

z=56-12

z=44

26-x=17

-x=17-26

-x=-9

x=9

8+5z=43

5z=43-8

5z=35

z=35/5

z=7

Johnny has a rectangular painting that he wants to build a wooden frame for. The pain measures 14 inches wide by 16 inches long. How much wood will Johnny need to frame the painng

Answers

Answer:60 inches

Step-by-step explanation: 14+14+16+16=60

How many solutions does this equation have: y=-2x^2+5x-9

Answers

Step-by-step explanation:

First we solve it.

I'll use substitution.

In the first equation y equals -2x+2 so we can apply that to the second equation

2y + 4x = 4

2(-2x+2) + 4x = 4

distribute

-4x+4+4x=4

simplify

4=4

To figure out how many solutions it has:

•If both side of the equal sign are exactly the same: Infinitely many

ex: 6x=6x

•If both sides of the equal sign do not match when completely simplified: No solutions

ex: 3x=-5x

•If it creates an equation: 1 solution

ex: x=3+2y

Since both sides of the equal sign are 4, we have infinitely many solutions.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Still stuck? Get 1-on-1 help from an expert tutor now.

Simplify:5m+3n-2m+n​

Answers

Answer:

3m+4n

Step-by-step explanation:

5m-2m=3m 3n+n=4n so 3m+4n

ANSWER: 7m+4n

Explanation: combine like terms.

Write an equivalent expression for (x + 4)^2
distributive property

Answers

Answer:

x² + 8x + 16

Step-by-step explanation:

(x + 4)²

= (x + 4)(x + 4)

Each term in the second factor is multiplied by each term in the first factor, that is

x(x + 4) + 4(x + 4) ← distribute parenthesis

= x² + 4x + 4x + 16 ← collect like terms

= x² + 8x + 16

The diameter of a semicircle is 16 miles. What is the semicircle's perimeter?

d=16 mi

Use 3. 14 for ​.


Please help.

Answers

[tex]\textit{circumference of a semi-circle}\\\\ C=\pi r~~ \begin{cases} \stackrel{\textit{half diameter}}{r=radius}\\[-0.5em] \hrulefill\\ r=8 \end{cases}\implies C=\pi (8)\implies \stackrel{using~\pi =3.14}{C=25.12}[/tex]

Chester County has $161 to buy new street signs. If each sign costs $2, how many new street signs will the county be able to buy?
Group of answer choices

A.the correct answer is not listed

B.81 signs

C.80 signs

D.79 signs

Answers

Answer:

80 / C

Step-by-step explanation:

Easy peasy 161 divided by 2 is 80.5, but you can't buy half of a sign. Round downwards.

Answer:

C

Step-by-step explanation:

Hello Guys, I really need help with these questions. Here they are.
Solve each absolute value inequality and show its solution set.
(a) |x|<7
(b) |x+3|<9
(c) |y-8|>11
(g) |3x-1| greater or equal to 18
|4y+3| less than or equal to 13
Please help me with these. WIll give 20 pts. I will award brainly for the best answer!

Answers

Step-by-step explanation:

Ok, so first...

a) if x is positive, it will remain x, so *x<7*

b) if x+3 is positive, it will be x+3<9 but you have to simplify it so you subtract 3 on both sides and get *x<6*

c) if y-8 is positive, it will stay like that, and you then add 8 on both sides to get *y>19*

g) if 3x-1 is positive, it will be 3x-1 greater than or equal to 18. add 1 on both sides and *3x > or = to 18*

4y+3 < or = 13. subtract 3 on both sides and you get *4y < or = 13*

One more thing:

Less than or equal to is a '<' with a line underneath.

Greater than or equal to is a '>' with a line underneath.

What is the value of y in the equation 2 y = −3? −1 −5 1 5.

Answers

An equation is formed when two equal expressions are equated together with the help of an equal sign '='. The value of y in the equation is -1.5.

What is an equation?

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The value of y in the equation can be found in the following manner,

[tex]2y=-3\\\\y=\dfrac{-3}{2}\\\\y = -1.5[/tex]

Hence, the value of y in the equation is -1.5.

Learn more about Equation:

https://brainly.com/question/2263981

Answer:

-1

Step-by-step explanation:

Question 1 of 5
Select the correct answer.
The dance committee at a local high school polled students to determine what theme they would like to have for the school dance. The
results of the poll are shown in the two-way frequency table below.
Starry Night Beach Party Masquerade Total
Girls 92
48
56 196
Boys 68
88
48 204
Total 160
136
104 400
Approximately what percentage of the total number of girls prefer the starry night theme?
57.5%
46.99
73.9%
34.7%
Submit
Reset

Answers

Answer: 46.9%

Step-by-step explanation:

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