All categories

3 years ago

Ms. Ellis expected 50 families to attend parent teacher conference but 60 families attended. What is the percent error?

Mathematics

2 answers:

natulia [17]3 years ago

6 0

Answer:

20%.

Step-by-step explanation:

That is (60 - 50) / 50

= 10/50

= 1/5

To convert to a percent we multiply by 100:

= 20%.

egoroff_w [7]3 years ago

6 0

I think it will be 10% because you invited 50 right? And 60 atended or was it 60 and 50 atended? Well either way I think it’s 10%

You might be interested in

joanna split three pitchers of water equally among her eight plants.what fraction of a pitcher did each plant get?

Vedmedyk [2.9K]

3/8 of a fraction is the amount of water that was split

6 0

3 years ago

Find the hypotenuse of an isosceles right triangle when the legs each measure 3\sqrt{x} 2inches.

Tresset [83]

The hypotenuse of the right triangle measures 3 units.

<h3>How to find the hypotenuse?</h3>

Here we know that both legs measure:

$L =\frac{3}{\sqrt{2} }$

If we use the Pythagorean theorem, we will see that the hypotenuse H can be written as:

$H^2 = (\frac{3}{\sqrt{2} } )^2 + (\frac{3}{\sqrt{2} } )^2 \\\\H^2 = \frac{9}{2} + \frac{9}{2} = \frac{18}{2} = 9\\\\H = \sqrt{9} = 3$

Then we conclude that the hypotenuse of the right triangle measures 9 units.

If you want to learn more about right triangles:

brainly.com/question/2217700

#SPJ1

6 0

1 year ago

Which unit of measure would be appropriate for the volume of a sphere with a radius of 2 meters

stiv31 [10]

<span>A sphere is a perfectly round geometrical object that is three dimensional, with every point on its surface equidistant from its center. Many commonly-used objects such as balls or globes are spheres. If you want to calculate the volume of a sphere, you just have to find its radius and plug it into a simple formula, V = ⁴⁄₃πr³</span>

6 0

3 years ago

Read 2 more answers

What is the right answer

poizon [28]

Answer:

The complement of 44° is the angle that when added to 44° forms a right angle ( 90° ). Subtract 44 from 90.

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Pls help me with this!

stira [4]

Answer:

See below.

Step-by-step explanation:

(a) < PMR

(b) < QMR

(d) < RMN

2. m < C = 4x - 6

= 4(25) - 6

= 100 - 6

= 94 so < C is obtuse.

3. 8x + 2 = 90

8x = 90 - 2

8x = 88

x = 11.

(a). < DBA and < DBC are right angles (90 degrees) because BD is perpendicular to AC.

(b) < DBA and < DBC are adjacent and they share the ray BD.

(d) < DBA and < DBC are supplementary

(e) 90 - 40 = 50 degrees

(f) 180 - 40 = 140 degrees.

(g) As the angles are complementary

3x + 2 + 4x + 4 = 90

7x = 90 - 2 - 4

7x = 84

x = 12.

6 0

3 years ago