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Daniel [21]3 years ago

4 0

Do you know whats the slope of the line on the graph ?

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The Marked price of an article is rupees 5000 .This price is 25% above the cost price. If the article is sold by allowing 10% di

Brilliant_brown [7]

Answer: 13%

Step-by-step explanation:

Step 1:

5000

10% of 5000=500

5% of 5000=250

25%=500+500+250= 1250 rupees

so...

5000-1250= 3750 INR, which is the original price, <u>BEFORE THE 25% WAS ADDED</u>

but..

They only want a 10% discount of the price which is 25% above the cost (5000). So essentially we want to find 15%, because 25%-10%=15%

so if...

10%=500

5%=250

15%=750 INR

this means the price with the 10% discount off 25%= 4250 INR (5000-750)

now we need to find the percentage change. For this we need to subtract the price with the 15% discount with the price BEFORE THE 25% was added

e.g 4250-3750= 500INR

Then.. divide this price with the original price before the 25% was added

e.g 500/3750= 2/15=0.13

So...

Convert 0.13 into a percentage=13%

The PERCENTAGE PROFIT of the owner is 13%

P.S Please could someone double check this answer as I am only 15 years old and may have gotten some working out wrong! Thank you

3 0

2 years ago

Using the quadratic formula to solve 7x2 – x = 7, what are the values of x?

Kruka [31]

How the quadratic formula works:

For any quadratic equation ax² + bx + c = 0, the solution is $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$ .

In the case of our equation 7x² - x = 7, first we need to subtract 7 from each side so that we have 0 on the right.
7x² - x - 7 = 0

Identify the values of a, b, and c.
a = 7, b = -1, and c = -7.

Plug these into our quadratic formula and solve.

$x=\frac{-(-1)\pm\sqrt{(-1)^2-4(7)(-7)}}{2(7)}=\boxed{\frac{1\pm\sqrt{197}}{14}$

There are two values for x: (1+√197)/14 and (1-√197)/14.
The approximate values for these are 1.073976 and -0.931119.

5 0

3 years ago

Read 2 more answers

What is the value of n<br><br> 2.3x10^9 = (1x10^3) (2.3x10^n)

n200080 [17]

Here's one shortcut:

2.3×10^9=1000(2.3×10^6) because your adding 3 more zeros to 2300000

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2 years ago

What is the prime factorization of 77 ?

n200080 [17]

Prime factorization: 77=7*11

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