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Ierofanga [76]
3 years ago
15

A stationer buys a gel pen Rs 20 and sells it at 20% profit.For what price should he buy it so that he can make 25% profit by se

lling for the same selling price.
​
Mathematics
1 answer:
Marta_Voda [28]3 years ago
3 0

Answer:

Current selling price = Rs 20 × 120 %

= Rs 24

Cost price should be [100 ÷ 125 ] × 24

= Rs 19.20

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Answer:

the probability having no customers are in the system is 0.375

Step-by-step explanation:

The computation of the probability having no customers are in the system is as follows;

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Based on the above information, the probability is

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3 years ago
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Answer:

Right Angles: C, F

Obtuse Angles: E, B

Acute Angles: A, D

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Right Angles are angles that are exactly 90 degrees.

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5 0
3 years ago
Read 2 more answers
If xy + y² = 6, then the value of dy/dx at x= -1 is<br>​
mylen [45]

Hi there!

\large\boxed{\text{At (-1, -2), }\frac{dy}{dx} = -\frac{2}{5}}}

\large\boxed{\text{At (-1, 3), }\frac{dy}{dx} = -\frac{3}{5}}}

We can calculate dy/dx using implicit differentiation:

xy + y² = 6

Differentiate both sides. Remember to use the Product Rule for the "xy" term:

(1)y + x(dy/dx)  + 2y(dy/dx) = 0

Move y to the opposite side:

x(dy/dx) + 2y(dy/dx) = -y

Factor out dy/dx:

dy/dx(x + 2y) = -y

Divide both sides by x + 2y:

dy/dx = -y/x + 2y

We need both x and y to find dy/dx, so plug in the given value of x into the original equation:

-1(y) + y² = 6

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Thus, y = -2 and 3.

We can calculate dy/dx at each point:

At y = -2: dy/dx = -(-2) / -1+ 2(-2) = -2/5.

At y = 3: dy/dx = -(3) / -1 + 2(3) = -3/5.

5 0
3 years ago
to make a trail mix you have 4 cups of pretzels and 2 cups of bread chips .what is the ratio of pretzels t bread chips ?
geniusboy [140]
4:2 or when simplified 2:1
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3 years ago
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5. Evaluate<br><br> 10+ (4 23 + 7) - 19<br> A. 30<br> B. 33<br> C. 47<br> D. 45
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Answer:

10+ (4 23 + 7) - 19

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