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3 years ago

1/2x=13 help!!?????????

Mathematics

2 answers:

Dmitry_Shevchenko [17]3 years ago

7 0

First we do, 1/2*x=13÷1/2. Which gives us x=13 1/2. 13 1/2=26. Therefore, x=26. Hoped I helped. :)

motikmotik3 years ago

5 0

1/2 x 13 = 6.5 in decimal form
Fractions Form: <span>1 1/2</span>
<span>
1/1 + 1/2

((1 × 2) + (1 × 1)) / (1 × 2)

(2 + 1) / 2

3/2

= 3/2

= 1 1/2

</span>

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A plane is uniquely determined by three non-collinear points. What is the maximum possible number of planes that can be determin

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6 planes

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The area of the sector is $37.68\ in^{2}$

Step-by-step explanation:

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8 0

3 years ago

What's the answer and how do you get it

ycow [4]

That some the answer

7 0

3 years ago

Simplify the following expressions by using distributive property. 3x^2(4x-3)

mr_godi [17]

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Step-by-step explanation:

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Hope this helps!

5 0

3 years ago

what is the ratio for the volumes of two similar spheres given that the ratio of their radii is 4:7 A.)343:64 B.)49:16 C.)16:49

quester [9]

Answer:

Volume of the similar sphere be 64 :343 .

Option (D) is correct.

Step-by-step explanation:

Formula

$Volume\ of\ a sphere = \frac{4}{3}\pi r^{3}$

As given

The volumes of two similar spheres given that the ratio of their radii is 4:7 .

Let us assume that the x be the scalar multiple of the radi .

Radius of first sphere = 4x

Radius of second sphere = 7x

Putting the values in the formula

$Volume\ of\ first\ sphere = \frac{4}{3}\pi\times 4x\times 4x\times 4x$

$Volume\ of\ first\ sphere = \frac{4}{3}\pi\times 64x^{3}$

$Volume\ of\ second\ sphere = \frac{4}{3}\pi\times 7x\times 7x\times 7x$

$Volume\ of\ second\ sphere = \frac{4}{3}\pi\times 343x^{3}$

Thus

$\frac{Volume\ of\ first\ sphere}{Volume\ of\ second\ sphere} = \frac{\frac{4\pi\times 64x^{3}}{3}}{\frac{4\pi\times 343x^{3}}{3}}$

$\frac{Volume\ of\ first\ sphere}{Volume\ of\ second\ sphere} = \frac{64}{343}$

Therefore the ratio of the volume of the similar sphere be 64 :343 .

Option (D) is correct .

5 0

3 years ago

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