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3 years ago

How do you divide big numbers?like for example, 2,673 ÷ 486?

1 answer:

3 0

The easiest way I know is to multiply the divisor by different numbers to see how many times it will go into the dividend. multiplying 486 by 2 or three and seeing which one gets closest.

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The distance of a trip

Vladimir [108]

Answer:

T-.5 = x (200)

Step-by-step explanation:

Let T = total time in hours

30 mn = .5 hours 30 /60 = .5

$ 2.00 is the rate per hour.

so T − .5 = the time that will be charged at the rate

Therefore the total charge is then

T − .5 × 2.00

4 0

2 years ago

Item 16 A sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. What is the difference of the vol

Zigmanuir [339]

Answer:

$672\pi \text{ cm}^3$ .

Step-by-step explanation:

We have been given that a sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. We are asked to find the difference of the volumes of the spheres.

We will use volume formula of sphere to solve our given problem.

$\text{Volume of sphere}=\frac{4}{3}\pi r^3$ , where r is radius of sphere.

The difference of volumes would be volume of larger sphere minus volume of smaller sphere.

$\text{Difference of volumes}=\frac{4}{3}\pi(\text{8 cm})^3-\frac{4}{3}\pi(\text{2 cm})^3$

$\text{Difference of volumes}=\frac{4}{3}\pi(512)\text{ cm}^3-\frac{4}{3}\pi(8)\text{ cm}^3$

$\text{Difference of volumes}=\frac{4}{3}\pi(512-8)\text{ cm}^3$

$\text{Difference of volumes}=4\pi(168)\text{ cm}^3$

$\text{Difference of volumes}=672\pi\text{ cm}^3$

Therefore, the difference between volumes of the spheres is $672\pi \text{ cm}^3$ .

3 0

3 years ago

What is 3/18 divided by 7/21... help plz

saw5 [17]

3/18 divided 7/21 =3/18 multiply by 21/7 (we have to flip the second fraction and multiply by 3/18)= 63/126=1/2
So the answer is 1/2

8 0

3 years ago

Read 2 more answers

How you know a fraction is less than 1/2

nikitadnepr [17]

The fraction will continue to be the same numerator "1". However the denominator will be a greater number. Such as 4. Then you will know it is broken into more peices (as being a greater number). These pieces will automatically be a smaller fraction.

So, in order to know if a fraction is less then 1/2, it will have a greater denominator.

hope this helps :)

5 0

2 years ago

Angelica is currently 13 years old she is 2 years older than her brother. Write an equation to represent the situation.Solve ur

sdas [7]

Answer:

Therefore,

$x+2=13$ .......Equation

Angelica's Brother's age is 11 years old.

Step-by-step explanation:

Given:

Let the current age of Angelica's Brother be 'x' years old

Angelica's current age is 13 years old,

According to given condition,

Therefore the Equation will be,

$x+2=13$

On solving this equation we get

$x=13-2=11\\\\x=11\ years$

Therefore,

Angelica's Brother's age is 11 years old.

Therefore,

$x+2=13$ .......Equation

Angelica's Brother's age is 11 years old.

6 0

3 years ago