please help in solving this math problem​

Please Help In Solving This Math Problem

Answers

Answer 1

9514 1404 393

Answer:

  Rs 3200

Step-by-step explanation:

The actual selling price was 20% below the cost price, so was ...

  sp = cp(1 -20%) = 0.80cp

Had the selling price been raised, the selling price would have been 5% above the cost price:

  sp +800 = cp(1 +5%) = 1.05cp

Subtracting the first equation from the second gives ...

  (sp +800) -(sp) = (1.05cp) -(0.80cp)

  800 = 0.25cp . . . . . . . simplify

  3200 = cp . . . . . . . . multiply by 4

The cost price was Rs 3200.


Related Questions

Share £360 into the ratio 3:2:1

Answers

Answer:

£180, £120 and £60.

Step-by-step explanation:

The number of parts = 3 + 2 + 1 = 6.

360 / 6 = 60, so the shares are:

3*60 = 180

2*60 = 120

1 * 60 = 60.

The distribution of £360 in the ratio of 3:2:1 will be  £180, £120 and £60.

What is a ratio?

In mathematics, ratios are used to determine the relationship between two numbers it indicates how many times is one number to another number.

The number of parts = 3 + 2 + 1 = 6.

360 / 6 = 60, so the shares are:

3  x 60 = 180

2 x 60 = 120

1  x 60 = 60.

Hence the distribution of £360 in the ratio of 3:2:1 will be  £180, £120 and £60.

To know more about ratios follow

https://brainly.com/question/2328454

#SPJ2

2.
The perimeter of a rectangle is 82 meters. If the length of the rectangle is 20 meters more than the width
of the rectangle, find its length and width.

Answers

Answer:

30.5 meters

10.5 meters

Step-by-step explanation:

x = length

y = width

x = y + 20

2x + 2y = 82 (the perimeter of a rectangle)

using the first equation as substitute in the second equation we get

2×(y + 20) + 2y = 82

2y + 40 + 2y = 82

4y = 42

y = 42/4 = 21/2 = 10.5 meters

x = y + 20 = 21/2 + 20 = 21/2 + 40/2 = 61/2 = 30.5 meters

Given that
()=2(−3)2−8
f
(
x
)
=
2
(
x

3
)
2

8
, determine the true statement.



The x intercepts of the graph of f(x) are (1,0) and (5,0).





Group of answer choices

The range of f(x) is
≥−8
y


8
.

The graph of f(x) is decreasing from
(3,∞)
(
3
,

)
.

The graph of f(x) has a maximum point at (3, -8).

The domain of f(x) is
≥3
x

3

Answers

Equations are used to show the relationship between variables (usually x and y). The true statement about f(x) is that the range of f(x) is [tex]y \ge -8[/tex]

Given that:

[tex]f(x) = 2(x - 2)^2 - 8[/tex]

To identify the true statement, I will make use of graphical method.

See attachment for the graph of [tex]f(x) = 2(x - 2)^2 - 8[/tex]

From the attached graph, we can see that the graph as a minimum at:

[tex](x,y) = (2,-8)[/tex]

And it opens upward.

This implies that the minimum y-value of f(x) is at -8, and it has no maximum.

In other words, the range of the function is:

[tex]f(x) \ge -8[/tex]

Hence, the true statement is option (a):

The range of f(x) is [tex]y \ge -8[/tex]

Read more about equations at:

https://brainly.com/question/17995541

tìm sự hội tụ của

∑ [tex]\frac{4^{n} }{n!}[/tex]
n=1

Answers

Answer:

100002

Step-by-step explanation:

bi the react

If the side length of a square is 7.2 inches, what is the area of the square

Answers

Answer:

51,84

Step-by-step explanation:

The area of the square if side * side, so 7.2 * 7.2 = 51,84 square inches

Pls help it's due today It's DUE IN 8 MINUTES.

Answers

Answer:

84 pounds

Step-by-step explanation:

What is -1 7/8 + -2 1/4? Please explain why and a step by step :).

Answers

9514 1404 393

Answer:

  -4 1/8

Step-by-step explanation:

Many people find it easier to factor out -1, then do the addition. The fractions need a common denominator before they can be added. A suitable denominator that is a multiple of both 4 and 8 is 8.

The fraction 1/4 = (1/4)(2/2) = (1·2)/(4·2) = 2/8.

__

So, the problem can be rewritten as ...

  -(1 7/8 +2 2/8)

  = -((1+2) +(7/8 +2/8))

  = -(3 +9/8)

The fraction 9/8 is an improper fraction equal to 8/8 +1/8 = 1 1/8. Then the sum is ...

  -(3 +1 1/8) = -4 1/8

A small fly weighs approximately 2.2 • 10^-3 gram and an average sized gnat weighs approximately 9•10^-4
1. find the sum of the weights of the two insects
2. How much heavier is the fly than the gnat?

Answers

Dhdjsksxksjaa jsjssisjdbi shdjdkswbkdjaja

determine the value of n and what property is represented.
3n = 1

Answers

I believe n is 1/3.

pls someone edit it and send ​

Answers

Step-by-step explanation:

1 & 2 are on the attachment

3 --------------

4)4x+5=17

 5x+5=20

5)2x+15+85+x+20=180

   3x+120              =180-120

                        3x=60

                          x=20 degrees

6)son's age=x

  3x+x=48

   4x=48

    x=12            

Therefore; son's age=12 years old

                  Mr.Robert age=12*3

                                           =36 years old

Hope this helps you

If you have any question just ask me

If you think this is the best answer please mark me as brainiest

Emergency funds are important because they

Answers

Answer:

an emergency fund allows you to live for a few months if you lose your job or if something unexpected comes up that costs a fair chunk of money to cover

Answer:

If there ever was an emergency you will need money to pay/afford the injury

Step-by-step explanation:

Find the area of a triangle with a base of 6 m and a height of 3 m.

Answers

Area of a triangle=1/2×base×height
Area=1/2×6×3=9

Hope my answer helped u :)

4= 2/9x. I need help anyone

Answers

Step-by-step explanation:

4×2= 9x

8/9=x

Transposition

Answer:

x = 8/9

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Solve the equation z^4+4z^2+16=0

Answers

Answer:

As this is a quartic equation, we should expect four roots (although some may end being repeated). Notice also that the equation is symmetrical, which suggests that there might be an element of symmetry in the answer.

First, as this equation is a quadratic in terms of z2 , we can use our formula for finding the roots of a quadratic equation to give the value(s) of z2 . [If you have a problem seeing this, use the substitution y=z2 , and you get a quadratic in y .]

z2=−4±42−4×1×16√2×1=−4±16−64√2

=−4±−48√2=−2±12−−√i=−2±23–√i

=4(−12±3√2)i

=4(cos(2kπ3)+isin(2kπ3)) , where k∈1,2

=4e2kiπ3

As this is the value of z2 , whereas we want z , we need to take the square roots of both sides

z=4–√ekiπ3+nπ , where n∈0,1

=2e(k+3n)iπ3

=2cis((k+3n)iπ3)

As we have two values of k and two values of n , this gives us four solutions.

Writing these angles in terms of degrees, we have: 60, 120, 240 and 300

Evaluating, we end up with the four solutions

z=1±3–√i∪z=−1±3–√i

You can substitute z^2 = x,

Then you get x^2+4x+16=0

Step-by-step explanation:

z=1±3–√i∪z=−1±3–√i

You can substitute z^2 = x,

Then you get x^2+4x+16=0

Then you can use classical x1,2 = (-b +- √[b^2–4ac])/2a

X1,2=(-4+-√[16–16*4])/2

After you solve that you substitute back z^2 = x

0.189 divided by 1.75=
Explain how you get this answer

Answers

9514 1404 393

Answer:

  = 0.108

Step-by-step explanation:

Use a calculator or long division.

When using long division, it is convenient to move the decimal points in both numbers to the right 2 places. This makes the divisor an integer, so makes it easier to keep track of appropriate place value in the quotient.

  0.189/1.75 = 18.9/175 = 0.108

Erin is buying produce at a store. She buys c cucumbers at $0.69 each and a apples at $0.89 each. What does the expression 0.69c + 0.89a represent?

The expression represents the
(select)
.

Answers

Answer:

It represents the total amount that Erin is going to spend at the store.

Step-by-step explanation:

Can someone please help me please?

Answers

9514 1404 393

Answer:

  D.  G(x) = (x+3)² -2

Step-by-step explanation:

G(x) is translated left 3 and down 2 from F(x). The transformation ...

  G(x) = F(x -h) +k

is a translation right h units and up k units. We have h=-3 and k=-2, so the function of interest is ...

  G(x) = F(x +3) -2

  G(x) = (x +3)² -2

Write an expression for the operation described below.


multiply 6 by u

Answers

Answer:

6u

Step-by-step explanation:

it is the algebraic answer.

hope this helps!

Answer:

the answer is 6×u

Step-by-step explanation:

by and multiply are multiplication

write an expression that removes any perfect square factors in the radicand. Assume all variables are positive.

Answers

X=2.x is wrong use Photo math

I need the logistics models student guide answer key!!

Answers

Answer:

Ans

Step-by-step explanation:

if you get it, please share it with me.

A. Your friend says that the solutions to the inequality 9x-18x ≥ - 18 are x ≥ 2 Solve the inequality correctly. B. What error did your friend make?

Answers

Answer:

A. x≤2; B. wrong unequality after dividing by negative number.

Step-by-step explanation:

9x-18x≥ -18;

-9x≥ -18;

0≥ -18+9x;

18≥9x;

9x≤18;

x≤2.

Is 0.875 irrational or rational and why?

Answers

Yes it’s rational It can be expressed as the quotient of two integers


The temperature of the pool water was 83 degrees during the day and
dropped 7 degrees at night. What was the new temperature.

Answers

Answer:

76

Step-by-step explanation:

83-7=76

Find the probability that a student earns a grade of A,B, or C
P=

Answers

Answer:

Step-by-step explanation:

Answer: 0.86

Step-by-step explanation:

Write an expression for "the product of 5 and z.”
+
y
Stuck? Review related articles/videos or use a hint.

Answers

Answer:

5z

Step-by-step explanation:

Product means multiply

5z

9. Use Structure Point K is of the way from |(4,-5) to L(0, -7). a. What are the coordinates of Kif n = 4? b. What is a formula for the coordinates of K for any n?​

Answers

Dividing the segments, it is found that:

a) The coordinates of K if n = 4 are [tex](5,-frac{9}{2})[/tex]b) [tex]K - J = \frac{1}{n}(J - L)[/tex]

----------------------------

The endpoints are [tex]J(4,-5)[/tex] and [tex]L(0,-7)[/tex].Point K is (x,y).Since point K is [tex]\mathbf{\frac{1}{n}}[/tex] of the way from J to L, it means that:

[tex]K - J = \frac{1}{n}(J - L)[/tex]

And this is the answer to option b.

----------------------------

Option a:

If [tex]\mathbf{n = 4}[/tex], it has that:

[tex]K - J = \frac{1}{4}(J - L)[/tex]

This is applied to find both the x-coordinate and the y-coordinate of K.

----------------------------

The x-coordinate of K is x.The x-coordinate of J is 4.The x-coordinate of L is 0.

Thus:

[tex]K - J = \frac{1}{4}(J - L)[/tex]

[tex]x - 4 = \frac{1}{4}(4 - 0)[/tex]

[tex]x - 4 = 1[/tex]

[tex]x = 5[/tex]

----------------------------

The y-coordinate of K is y.The y-coordinate of J is -5.The y-coordinate of L is -7.

Thus:

[tex]K - J = \frac{1}{4}(J - L)[/tex]

[tex]y - (-5) = \frac{1}{4}(-5 - (-7))[/tex]

[tex]y + 5 = \frac{2}{4}[/tex]

[tex]y = \frac{1}{2} - 5[/tex]

[tex]y = \frac{1}{2} - \frac{10}[2}[/tex]

[tex]y = -\frac{9}{2}[/tex]

The coordinates of K if n = 4 are [tex](5,-frac{9}{2})[/tex]

A similar problem is given at https://brainly.com/question/20847604

Look at image for question and answers

Answers

Answer:

d

Step-by-step explanation:

i did this last year

Solve for X. Will give a lot of points. HELP!!!

Answers

Answer:

7).

RT = RS + ST

[tex]10 = (2x - 20) + (2x - 18) \\ 10 = (2x + 2x) + ( - 20 - 18) \\ 10 = 4x - 38 \\ 4x = 10 + 38 \\ 4x = 48 \\ { \boxed{x = 12}}[/tex]

8).

LN = LM + MN

[tex](5x - 2) = 12 + (x + 2) \\ (5x - x) = 12 + 2 + 2 \\ 4x = 16 \\ { \boxed{x = 4}}[/tex]

I hope this helps. I wasn’t sure how to put it into words.

please help that’s all i just need to make i’m correct it due tomorrow early so please

Answers

The answer is 6 i think

Consider the function below.
g(x) = 2x - 1


Find the difference quotient below (where h = 0) and simplify your answer.

g(x + h) - g(x) / h

Answers

Answer:

Step-by-step explanation:

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