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3 years ago

2/5 of a number is what percent of that number

Mathematics

1 answer:

aalyn [17]3 years ago

4 0

Answer:

40%.

Step-by-step explanation:

2/5 = 40%.

Please let me or another Brainly user know if you need further assistance. Thanks!

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Need help asappppppp

PilotLPTM [1.2K]

Given:

The right triangular prism.

Height of prism = 28 in.

Hypotenuse of base = 25 in.

leg of base = 24 in.

To find:

The lateral surface area of the prism.

Solution:

Pythagoras theorem:

$Hypotenuse^2=Perpendicular^2+Base^2$

Using Pythagoras theorem in the base triangle, we get

$25^2=24^2+Base^2$

$625-576=Base^2$

$\sqrt{49}=Base$

$7=Base$

The perimeter of the triangular base is:

$P=7+25+24$

$P=56$

Lateral area of a triangular prism is:

$A=Ph$

Where, P is the perimeter of the triangular base and h is the height of the prism.

Putting $P=56,h=28$ in the above formula, we get

$A=56(28)$

$A=1568$

Therefore, the lateral area of the prism is 1568 in².

8 0

2 years ago

In 1992, there were 120 students in the freshmen class. in 2005, there were 224. find the rate of change from 1992 to 2005.

kolezko [41]

b) 8

they were asking you about the rate of increase in students per year

so you take increase in students/years= (224-120)/(2005-1992)=104/13=8

7 0

3 years ago

Show work please and thanks!

kompoz [17]

Do you understand what I did here?

5 0

3 years ago

HELP DUE SOON! x = ?? degrees

rjkz [21]

Answer:

Step-by-step explanation:

Tricky. Very neat.

You are missing the minor arcAC and you need it, but don't fret. It can be found.

The formula for this is x = 1/2(Major Arc(235) - Minor Arc(see below) )

The minor arc is the supplement of x.

The minor arc is also equal to the the central angle

So the minor arc is 180 - x

x = 1/2 (235 - (180 - x) ) Remove the inside brackets

x = 1/2 (55 + x ) Remove the remaining brackets

x = 1/2 *55 + 1/2x Subtract 1/2x from both sides

1/2 x = 27.5 Multiply both sides by 2

x = 55

4 0

3 years ago

Determine the radius, to the nearest inch, of a large can of tuna fish that has a volume of 66 cubic

Mnenie [13.5K]

The radius of can is 2.524 inches

Solution:

Given that large can of tuna fish that has a volume of 66 cubic inches and a height of 3.3 inches

To find: Radius

Given a large can of tuna fish, we know that can is generally of cylinder shape, we can use the volume of cylinder formula,

The volume of cylinder is given as:

$\text{ volume of cylinder}= \pi r^{2} h$$

Where,

"r" is the radius of cylinder

"h" is the height of cylinder

$\pi$ is a constant equal to 3.14

Substituting the given values in above formula,

$66 = 3.14 \times r^2 \times 3.3\\\\66 = r^2 \times 10.362\\\\r^2 = \frac{66}{10.362}\\\\r^2 = 6.369\\\\r = 2.524$

Thus the radius of can is 2.524 inches

4 0

3 years ago