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3 years ago

11

In a furniture shop , 24 tables were bought at the rate of Rs. 450 per table . The shopkeeper sold 16 of them at the rate of Rs.

600 per table and the remaining at the rate of Rs. 400 per table . Find his gain or loss.

1 answer:

vodomira [7]3 years ago

5 0

Answer:

Step-by-step explanation:

im not sure

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Hey and help me help me help plzzzzzzzzz

scZoUnD [109]

Answer:17

Step-by-step explanation:

First you subtract 13-9 to find the distance between the 2 numbers. That gets you 4 but if the numbers are 2 spaces away from one another then that means that the number line increases by 2. Then you add 4 to 13 and that’s how you get 17.

4 0

3 years ago

Which statement comparing x² + 10 and x + x + x is true when x=−5 ?

MissTica

When comparing x^2 + 10 and x + x + x equals to:
x^2 +10 is greater than x + x + x when x = -5
Because -5^2 + 10 = 25 + 10 = 35
and -5 + -5 + -5 = -15
So, 35 > -15

5 0

3 years ago

Read 2 more answers

Find the area of the helicoid (or spiral ramp) with vector equation r(u, v) = ucos(v) i + usin(v) j + v k, 0 ≤ u ≤ 1, 0 ≤ v ≤ 9π

Natasha2012 [34]

Let $H$ denote the helicoid parameterized by

$\mathbb r(u,v)=u\cos v\,\mathbf i+u\sin v\,\mathbf j+v\,\mathbf k$

for $0\le u\le1$ and $0\le v\le9\pi$ . The surface area is given by the surface integral,

$\displaystyle\iint_H\mathrm dS=\iint_H\|\mathbf r_u\times\mathbf r_v\|\,\mathrm du\,\mathrm dv$

We have

$\mathbf r_u=\dfrac{\partial\mathbf r(u,v)}{\partial u}=\cos v\,\mathbf i+\sin v\,\mathbf j$
$\mathbf r_v=\dfrac{\partial\mathbf r(u,v)}{\partial v}=-u\sin v\,\mathbf i+u\cos v\,\mathbf j+\mathbf k$
$\implies\mathbf r_u\times\mathbf r_v=\sin v\,\mathbf i-\cos v\,\mathbf j+u\,\mathbf k$
$\implies\|\mathbf r_u\times\mathbf r_v\|=\sqrt{1+u^2}$

So the area of $H$ is

$\displaystyle\iint_H\mathrm dS=\int_{v=0}^{v=9\pi}\int_{u=0}^{u=1}\sqrt{1+u^2}\,\mathrm du\,\mathrm dv$
$=\dfrac{9(\sqrt2+\sinh^{-1}(1))\pi}2$

5 0

3 years ago

If $8500 is invested at 12.7% compounded continuously, the future value S at any time t (in years) is given by the following for

Serjik [45]

Answer:

Given formula is :

S = $8500e^{0.127t}$

We have p = 8500

r = 12.7% or 0.127

(a) when t = 18 months or $\frac{18}{12}=1.5$ years

S = $8500e^{0.127(1.5)}$

= $8500e^{0.1905}$

= $e^{0.1905}$ = 1.20985

S = $10283.73

(b) Investment doubles means S = $8500\times2=17000$

$17000=8500e^{0.127t}$

$\frac{17000}{8500}=e^{0.127t}$

=> $2=e^{0.127t}$

Taking log on both sides

$ln(2)=ln(e^{0.127t})$

We get t = 5.45 years

8 0

4 years ago

Jake rolls a six-sided die, numbered 1 to 6, five times. He rolls a 3 on two attempts.

matrenka [14]

I do believe that the answer to your question is 60%

4 0

3 years ago