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Aleksandr [31]
2 years ago
14

20. 7/9+2/6 A.3/9 B.4/9 C.7/18 D.5/15​

Mathematics
1 answer:
zheka24 [161]2 years ago
5 0

Answer:

i dont know why but it has to be 10/9 but there is no this option

Step-by-step explanation:

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A shopkeeper gained Rs 8 by selling a pen by allowing 10% discount. Hw would have gained Rs 20, if he had not allowed discount.
Andrei [34K]

Answer:

Cost of the pen = Rs.100

Step-by-step explanation:

Let the marked price = x

When the shopkeeper is selling for x, his gain = Rs. 20

Cost price = Marked price  - Gain = x - 20 --------(I)

After discount:

Discount = 10%

Marked price after discount = (100 - 10)% of x = 90% of x

                                               = 0.9 * x = 0.9x

When the shopkeeper is selling for 0.9x, his gain = Rs.8

Cost price = Marked price - gain = 0.9x - 8   -------(II)

From (I) and (II)

x - 20 = 0.9x - 8

x   = 0.9x - 8 + 20

x = 0.9x + 12

x - 0.9x = 12

0.1x = 12

x = 12/0.1

x = 120

Marked price of pen = Rs.120

Cost price = 120 - 20

Cost price  = Rs. 100

3 0
3 years ago
What is the measure of angle BEC?
Sphinxa [80]

Answer:

< BEC =  \frac{1}{2}  \times  80 \degree \\  < BEC =  40 \degree

3 0
2 years ago
What is the equation of a line that passes through point r(−3, 5) and has a slope of 4?
nexus9112 [7]
The equation of any line is:
y=mx+b  m is slope.

We just need to put inside of equation x=(-3) and y=5:
5=4*(-3)+b
17=b

It follows that equation of a line is:
y=4x+17
4 0
3 years ago
Please help me out with this
Ivanshal [37]

Answer:

374.1

Step-by-step explanation:

Area of Hexagon = \frac{3\sqrt{3} }{2} * a^{2}

The ' a ' is the side length.

So now we just plug in the values

\frac{3\sqrt{3} }{2} *12^{2} = 374.12

3 0
3 years ago
HELP I AM STUCK AND ITS DUE SOON
Mila [183]

Answer:

I'm not for sure about this one but if I did my math right it should be 68 sence it would be 48 if you didnt add 20

4 0
3 years ago
Read 2 more answers
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