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3 years ago

What is a fraction with a common denominator for 3/5 and 3/4

Mathematics

1 answer:

mariarad [96]3 years ago

5 0

20 would be the common denominator and the answer would be 12/20 and 15/20

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$20 haircut with 10% and 7% tax

Anika [276]

20 * .10 = 2 <em>(2 = 10% of 20)</em>

20 + 2 = 22

20 x .07 = 1.4 <em>(1.4 = 7% of 20)</em>

20 + 1.4 = 21.4

The price of a 20$ haircut with a 10% tax would be $22.

The price of a 20$ haircut with a 7% tax would be $21.40.

4 0

3 years ago

HELP me plz someone!

Kamila [148]

Answer:

4,095 ft³

Step-by-step explanation:

V=LWH

V = 3 x 15 x 14

V= 4,095

4 0

3 years ago

Explain how you can use the answer to problem 2 to verify the unit rate is 40

Helen [10]

Answer:

6ab+8a factor out 2 from the expression. Your answer will be (2ax(3b+4). I hope this helps you.

Step-by-step explanation:<!>BRAINLIEST APPERICATED<!>

3 0

3 years ago

Which expression is NOT equivalent to the expression 8m + 12?

eimsori [14]

Answer:

Step-by-step explanation:

6 0

2 years ago

Use spherical coordinates. evaluate xyz dv e , where e lies between the spheres ρ = 4 and ρ = 6 and above the cone ϕ = π/3.

sergey [27]

Set

$x=\rho\cos\theta\sin\varphi$

$y=\rho\sin\theta\sin\varphi$

$z=\rho\cos\varphi$

so that the volume element is

$\mathrm dV=\mathrm dx\,\mathrm dy\,\mathrm dz=\rho^2\sin\varphi\,\mathrm d\rho\,\mathrm d\theta\,\mathrm d\varphi$

The integral is then

$\displaystyle\iiint_Exyz\,\mathrm dV=\int_{\varphi=0}^{\varphi=\pi/3}\int_{\theta=0}^{\theta=2\pi}\int_{\rho=4}^{\rho=6}\rho^5\cos\theta\sin\theta\sin^3\varphi\cos\varphi\,\mathrm d\rho\,\mathrm d\theta\,\mathrm d\rho$

$=\displaystyle\left(\int_0^{\pi/3}\sin^3\varphi\cos\varphi\,\mathrm d\varphi\right)\underbrace{\left(\int_0^{2\pi}\cos\theta\sin\theta\,\mathrm d\theta\right)}_0\left(\int_4^6\rho^5\,\mathrm d\rho\right)$

and so evaluates to 0.

3 0

3 years ago