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3 years ago

Read the question then answer it

Mathematics

1 answer:

True [87]3 years ago

4 0

Answer:

Figure show demonstration of $\frac{1}{6}$ and $\frac{1}{30}$

Step-by-step explanation:

Let chosen fraction be $\frac{1}{6}$

Now we multiply fraction with $\frac{1}{5}$

Result will be

= $\frac{1}{6}\times\frac{1}{5}$

= $\frac{1}{30}$

Figure show demonstration of $\frac{1}{6}$ and $\frac{1}{30}$

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Which expression has the greater value -8x3 or -8+3?

kotegsom [21]

-8*3=-24
-8+3=-5
-8+3 has a greater value

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3 years ago

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Ninety-eight camp participants are to be divided into 7 groups. Brittany uses the five-step problem-solving plan. After completi

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3 years ago

A spherical balloon currently has a radius of 19cm. If the radius is still growing at a rate of 5cm or minute, at what rate is a

miv72 [106K]

Answer:

22670.8 cm³/min

Step-by-step explanation:

Given:

Radius of the balloon at a certain time (r) = 19 cm

Rate of growth of radius is, $\frac{dr}{dt}=5\ cm/min$

The rate at which the air is pumped in the balloon can be calculated by finding the rate of increase in the volume of the balloon.

So, first we find the volume of the sphere in terms of 'r'. As the balloon is spherical in shape, the volume of the balloon is equal to the volume of a sphere. Therefore,

Volume of balloon is given as:

$V=\frac{4}{3}\pi r^3$

Now, rate of increase of volume is obtained by differentiating both sides of the equation with respect to time 't'.

Differentiating both sides with respect to time 't', we get:

$\frac{dV}{dt}=\frac{d}{dt}(\frac{4}{3}\pi r^3)\\\\\frac{dV}{dt}=\frac{4\pi}{3}(3r^2)(\frac{dr}{dt})\\\\\frac{dV}{dt}=4\pi r^2(\frac{dr}{dt})$

Now, plug in 19 cm for 'r', 5 cm per minute for $\frac{dr}{dt}$ and solve for $\frac{dV}{dt}$ . This gives,

$\frac{dV}{dt}=4\pi (19 cm)^2(5\ cm/min)\\\\\frac{dV}{dt}=4\times 3.14\times 361\times 5\ cm^3/min\\\\\frac{dV}{dt}=22670.8\ cm^3/min$

Therefore, the rate at which the air is being pumped into the balloon is 22670.8 cm³/min.

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4 years ago

How do solve for percent

HACTEHA [7]

Answer:

To find the percentage of a number when it is in decimal form, you just need to multiply the decimal number by 100. For example, to convert 0.5 to a percentage, 0.5 x 100 = 25% The second case involves a fraction. If the given number is in fractional form, first convert it to a decimal value and multiply by 100.

Step-by-step explanation:

Hope this helps!!! :))

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3 years ago

Please help will gove brainliest of right answer i need it asap thanks

velikii [3]

It’s the second option counting from top to bottom

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3 years ago

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