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2 years ago

Number Sense How is dividing 250 by50 the same as dividing 2,500 by 500

2 answers:

7 0

___5. ____5. ______5
50)250. 500)2500. 5000)25000

As long as the numbers in the equation have equal number of "0" it will be the same.

Mazyrski [523]2 years ago

7 0

250 by 50 is 1 tenth of 2500 by 500 both equal 5

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Please please please help me with this assignment :)

Shtirlitz [24]

Answer:

$45.63

Step-by-step explanation:

$50,145 cm^{3} * 2.6 g/cm^3 = 130,377 g\\130,377 g = 130.377 kg\\130.377 kg * $0.35/kg = $45.63\\$

or all together

50,145 cm³ * 2.6 g/cm³ * 0.35/kg = $45.63

6 0

3 years ago

3. A balancing balloon toy is in the shape of a hemisphere (half-sphere) attached to the base of a cone. If the toy is 4ft tall

Katen [24]

Answer:

The volume of the toy is $V=5.23\ ft^3$

Step-by-step explanation:

step 1

Find the volume of the hemisphere

The volume of the hemisphere is given by the formula

$V=\frac{2}{3}\pi r^{3}$

In this problem, the wide of the toy is equal to the diameter of the hemisphere

$D=2\ ft$

$r=2/2=1\ ft$ ----> the radius is half the diameter

substitute

$V=\frac{2}{3} \pi (1)^{3}=\frac{2}{3} \pi\ ft^3$

step 2

Find the volume of the cone

The volume of the cone is given by

$V=\frac{1}{3}\pi r^{2}h$

we know that

The radius of the cone is the same that the radius of the hemisphere

$r=1\ ft$

The height of the cone is equal to subtract the radius of the hemisphere from the height of the toy

$h=4-1=3\ ft$

substitute the given values

$V=\frac{1}{3}\pi (1)^{2}(3)=\pi\ ft^3$

step 3

Find the volume of the toy

we know that

The volume of the toy, is equal to the volume of the cone plus the volume of the hemisphere.

$V=(\frac{2}{3} \pi+\pi)\ ft^3$

$V=(\frac{5}{3}\pi)\ ft^3$

assume

$\pi=3.14$

$V=\frac{5}{3}(3.14)=5.23\ ft^3$

5 0

3 years ago

using the coordinate plane shown below 1/3 point is plotted five units to the right of -4, for where should a four point be plan

Mrac [35]

we know that

the fourth point is plotted 5 units to the right of (-4,4)

the coordinate x of the fourth point is equal to

-4+5=1

the y-coordinate of the fourth point is the same y coordinate of (-4,4)

therefore

the coordinates of the fourth point is (1,4)

8 0

1 year ago

Hello, I need assistance with the attached problem. My answer was incorrect

Semmy [17]

Answer:

(a) 480 + 1640

Step-by-step explanation:

I don't really know what (b) is

but hope this helped

6 0

3 years ago

Anson estimated he would need 17 hours to complete his science project. He actually needed 19 1 2 19 1 2 hours. What was his per

satela [25.4K]

Answer:

The answer is B. 14.7%.

Step-by-step explanation:

Given:

Estimated time need to complete project $17h$ .

Actually time needed $19\frac{1}{2}h$ = $\frac{39}{2}$ h.

Difference between the time $ET-AT$ = $\frac{39}{2}- 17\\=\frac{39}{2} -\frac{34}{2}\\ =\frac{5}{2}$ $=2.5h$ .

So, the percentage error is $\frac{2.5}{17}\times100\\ =\frac{250}{17} \\=14.70%$ .

Therefore, the answer is B. 14.7%.

7 0

3 years ago

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