What is 21 over 40 in percent

Mathematics

1 answer:

Lorico [155]2 years ago

6 0

52.5% or it can also be a decimal if needed its 0.525

You might be interested in

Can someone answer this question for me?

hjlf

Answer:

That is a right angles triangle which means to get the area: multiply the base(14.1)to be the height (9.8) divided by 2.

Formula : half the base times the height given. Your answer is to be squared and don't forget the correct unit.

6 0

2 years ago

In 12 1/2 minutes, Dulce read 50 pages. a. on an average, how many pages did she read per min.?

tamaranim1 [39]

50 divided by 12.5 is 4
4 pages per minute

8 0

2 years ago

Which of the following are among the five basic postulates of euclidean geometry

docker41 [41]

Answer : The Euclidean geometry is a mathematical system that is attributed to Alexandrian Greek mathematician Euclid. He described mostly about the Elements in geometry. The method consisted of assuming a small set of intuitively appealing axioms, and deducing many other propositions from these.

The five basic postulates of euclidean geometry are as follows;

A straight line may be drawn between any two points.
A piece of straight line may be extended indefinitely.
A circle may be drawn with any given radius and an arbitrary center.
All right angles are equal.
If a straight line crossing two straight lines makes the interior angles on the same side less than two right angles, the two straight lines, if extended indefinitely, meet on that side on which are the angles less than the two right angles.

6 0

2 years ago

3x + y = 8<br><br> -x + y = -4<br> Solve the system. Write your answer as an ordered pair (x, y)

timurjin [86]

I hope this helps you

x=y+4

3 (y+4)+y=8

3y+12+y=8

4y= -4

y= -1

x= -1+4

x=3

(3, -1)

8 0

2 years ago

Point m is the midpoint of ab¯¯¯¯¯ . am=2x+9, and ab=8x−50. what is the length of am¯¯¯¯¯¯ ?

iogann1982 [59]

Since m is the midpoint of ab, then the following relationship is fulfilled:
$am = \frac{ab}{2}$
Therefore, substituting values we have:
$2x+9 = \frac{8x-50}{2}$
From here, we clear the value of x.
We have then:
$2x+9 = 4x-25$
$9+25 = 4x-2x$
$34 = 2x$
$x = \frac{34}{2}$
$x = 17$
Then, the value of am, is given by substituting x in the expression:
$am=2x+9$
Substituting we have:
$am=2(17)+9$
$am=34+9$
$am=43$
Answer:
the length of am is:
$am=43$

7 0

3 years ago