There were 30 pupils in the computer room. 80% of the pupils were girls. How many girls were there in the computer room?

Mathematics

1 answer:

Lunna [17]3 years ago

6 0

80 percent of 30 is 24

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And what is the permiter of the right triangle

saveliy_v [14]

Answer:

the answer is b 28 in sq

Step-by-step explanation:

the area is b i believe

4 0

3 years ago

Brain bought 2 shirts for 14.50 each and a pair of shoes for 29.99 the sales tax was 6%

Sedbober [7]

Cost of each shirt bought by Brain = 14.50
Then
Cost of 2 shirts bought by Brain = 2 * 14.50
      = 29
Cost of a pair of shoes = 29.99
Total amount spent by Brain before tax = 29 + 29.99
   = 58.99
Percentage of sales tax that needs to be paid = 6%
Amount of sales tax that needs to be [paid = (6/100) * 58.99
   = 353.94/100
   = 3.54
So
the total amount spent by Brain including tax = 58.99 + 3.54
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I hope this is the answer you were looking for.

6 0

3 years ago

Read 2 more answers

Graph the following function and identify any shifts, stretches, and symmetry and x and y intercepts:

klasskru [66]

Shifts:

Shifted three units right and two units up to match the blue parabola

Stretches:

It doesn't have any stretches

Symmetry:

$x=3$

x and y intercepts:

x intercpets: It has no x-intercepts

y-intercepts: (0, 11)

<h2>Explanation:</h2>

The pattern of the quadratic function is:

$f(x)=x^2$

Whose graph is shown below as the red parabola.

So here we need to identify some characteristics of:

$y = f(x) = (x - 3)^2 + 2$

Whose graph is shown below as the blue parabola.

As you can see, the blue parabola is a transformation of the red parabola. The rule is as follows:

The red parabola has been shifted three units right and two units up to match the blue parabola.

This is so because, for any function:

$y=f(x)$

We have the following transformations:

$y=h(x)=f(x+c)+k \\ \\ \\ \bullet \ c>0 \ Shift \ f(x) \ c \ units \ to \ the \ left \\ \\ \bullet \ c0 \ Shift \ f(x) \ k \ units \ up \\ \\ \bullet \ k$

On the other hand, the blue graph has neither stretches nor x intercepts. Finally, its axes of symmetry is $x=3$ . The y-intercept is (0, 11) is indicated in the figure.

<h2>Learn more:</h2>

Shifting graphs: brainly.com/question/10010217

#LearnWithBrainly